APA (7th ed.) Citation

Kramm, E. (1951). Die Flechten. Geest & Portig.

Chicago Style (17th ed.) Citation

Kramm, Eberhard. Die Flechten. Leipzig: Geest & Portig, 1951.

MLA (8th ed.) Citation

Kramm, Eberhard. Die Flechten. Geest & Portig, 1951.

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