Watson, G. E. (2006). Big Thicket plant ecology: An introduction (3rd ed.). UNT Press, University of North Texas Press : Big Thicket Association.
Lua i Stíl Chicago (17ú heag.)Watson, Geraldine Ellis. Big Thicket Plant Ecology: An Introduction. 3rd ed. Denton, Tex.: UNT Press, University of North Texas Press : Big Thicket Association, 2006.
Lua MLA (9ú heag.)Watson, Geraldine Ellis. Big Thicket Plant Ecology: An Introduction. 3rd ed. UNT Press, University of North Texas Press : Big Thicket Association, 2006.
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