@booklet {2614,
	title = {A biosystematic study of the Calystegia spithamaea - catesbeiana complex (Convolvulaceae).},
	volume = {37},
	year = {1976},
	pages = {585 - 586},
	publisher = {Diss. Abstr. Int., B},
	abstract = {abstract of a PhD dissertation?},
	keywords = {Americas, Calystegia, chromosome numbers, Systematics},
	author = {Mikesell, P. D.}
}
