@book {2237,
	title = {Monograph of the genus Gongora Ruiz \& Pavon},
	year = {1993},
	publisher = {Koeltz Scientific Books (U.S.A.)},
	organization = {Koeltz Scientific Books (U.S.A.)},
	author = {Rudolpf Jenny}
}
@book {2231,
	title = {Orchids of Mexico},
	year = {2005},
	pages = {304},
	publisher = {Instituto Chinoin},
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	address = {Mexico},
	author = {Hagsater, E. and Soto Arenas, M.A. and Salazar Chavez, G.A. and Machorro, R.J. and Lopez Rosas, M.A. and Dressler, R.L.}
}
@book {2230,
	title = {Biology},
	year = {2008},
	pages = {1376},
	publisher = {Peter Adams},
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	edition = {8th},
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}
@book {2229,
	title = {Fungal Biology},
	year = {2006},
	pages = {372},
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	edition = {4th},
	author = {Deacon, J.W.}
}
@book {2228,
	title = {Icones Orchidacearum Fascicle I: Orchids of Mexico Part 1},
	year = {1990},
	publisher = {Asociacion Mexicana de Orquideologia A.C. },
	organization = {Asociacion Mexicana de Orquideologia A.C. },
	address = {Mexico},
	author = {Hagsater, E. and Salazar, G.A.}
}
@book {2218,
	title = {Handbook of Waterfowl Behavior},
	year = {1965},
	publisher = {University of Nebraska},
	organization = {University of Nebraska},
	address = {Lincoln },
	url = {http://digitalcommons.unl.edu/bioscihandwaterfowl/7},
	author = {Johnsguard, Paul}
}
@book {2208,
	title = {Mute Swan (Cygnus olor). In The Birds of North America No 273 },
	year = {1997},
	publisher = {The Birds of North America, Inc.},
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	edition = {No. 273 (A.Poole and F. Gill) },
	address = {Philadelphia, PA},
	author = {Ciaranca, M. A. and Allin, CC and Jones, GS}
}
@book {2207,
	title = {The descent of man, and selection in relation to sex.},
	year = {1871},
	author = {Darwin, C. R.}
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@book {2201,
	title = {Common Merganser (Mergus merganser) in The Birds of North America, No. 442},
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	year = {1999},
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	address = {Philadelphia, PA },
	author = {Mallory, M and Metz, K},
	editor = {Poole, A and Gill, F}
}
@book {2197,
	title = {The descent of man, and selection in relation to sex.},
	volume = {Volume 2 },
	year = {1871},
	publisher = {John Murray},
	organization = {John Murray},
	address = {London},
	author = {Darwin, C. R.}
}
@book {2145,
	title = {Revision of the classification of the Oscillatoriaceae.},
	year = {1968},
	pages = {370},
	publisher = {Academy of Natural Sciences of Philadelphia},
	organization = {Academy of Natural Sciences of Philadelphia},
	address = {Philadelphia},
	author = {Drouet, Francis}
}
