(1974). Geographical guide to floras of the world: An annotated list with special reference to useful plants and common plant names (2. reprint, [der Ausg. Washington], 1942.). Koeltz.
Chicago-Zitierstil (17. Ausg.)Geographical Guide to Floras of the World: An Annotated List with Special Reference to Useful Plants and Common Plant Names. 2. reprint, [der Ausg. Washington], 1942. Königstein/Ts: Koeltz, 1974.
MLA-Zitierstil (9. Ausg.)Geographical Guide to Floras of the World: An Annotated List with Special Reference to Useful Plants and Common Plant Names. 2. reprint, [der Ausg. Washington], 1942. Koeltz, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.