APA (7th ed.) Citation

Haeckel, I. (1930). Über Iridaceen. Fischer.

Chicago Style (17th ed.) Citation

Haeckel, Ingeborg. Über Iridaceen. Jena: Fischer, 1930.

MLA (9th ed.) Citation

Haeckel, Ingeborg. Über Iridaceen. Fischer, 1930.

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