APA (7th ed.) Citation

Schnalle, F. (1955). Pflanzen-Phänologie. Geest & Portig.

Chicago Style (17th ed.) Citation

Schnalle, Fritz. Pflanzen-Phänologie. Leipzig: Geest & Portig, 1955.

MLA (8th ed.) Citation

Schnalle, Fritz. Pflanzen-Phänologie. Geest & Portig, 1955.

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