Excursion guides.
APA Citation
International Botanical Congress (7th : 1950 : Stockholm). (1950). Excursion guides. [Uppsala: Almqvist & Wiksell.
MLA Citation
International Botanical Congress (7th : 1950 : Stockholm). Excursion Guides. [Uppsala: Almqvist & Wiksell, 1950.
Warning: These citations may not always be complete (especially for serials).