APA (7th ed.) Citation

International Botanical Congress. (1935). Proceedings of the ... International Botanical Congress. [Verlag nicht ermittelbar].

Chicago Style (17th ed.) Citation

International Botanical Congress. Proceedings of the ... International Botanical Congress. [Wechselnde Verlagsorte]: [Verlag nicht ermittelbar], 1935.

MLA (9th ed.) Citation

International Botanical Congress. Proceedings of the ... International Botanical Congress. [Verlag nicht ermittelbar], 1935.

Warning: These citations may not always be 100% accurate.