International Association for Plant Taxonomy. (1959). Excerpta botanica. G. Fischer.
Chicago Style (17th ed.) CitationInternational Association for Plant Taxonomy. Excerpta Botanica. Stuttgart: G. Fischer, 1959.
MLA (9th ed.) CitationInternational Association for Plant Taxonomy. Excerpta Botanica. G. Fischer, 1959.
Warning: These citations may not always be 100% accurate.