APA (7th ed.) Citation

Petersen, E. (1936). Unsere Zimmerpflanzen. Knorr & Hirth.

Chicago Style (17th ed.) Citation

Petersen, Elly. Unsere Zimmerpflanzen. München: Knorr & Hirth, 1936.

MLA (9th ed.) Citation

Petersen, Elly. Unsere Zimmerpflanzen. Knorr & Hirth, 1936.

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