APA (7th ed.) Citation

Focke, W. O. (1889). Anmerkungen zur Gattung Potentilla.

Chicago Style (17th ed.) Citation

Focke, Wilhelm Olbers. Anmerkungen Zur Gattung Potentilla. Bremen, 1889.

MLA (9th ed.) Citation

Focke, Wilhelm Olbers. Anmerkungen Zur Gattung Potentilla. 1889.

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