APA (7th ed.) Citation

Rudolph, K. (1931). Betula humilis Schrank, subfossil in Südböhmen ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Rudolph, Karl. Betula Humilis Schrank, Subfossil in Südböhmen. [Sonderdr.]. 1931.

MLA (9th ed.) Citation

Rudolph, Karl. Betula Humilis Schrank, Subfossil in Südböhmen. [Sonderdr.]. 1931.

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