APA (7th ed.) Citation

Darwin, C., & Darwin, F. (1908). Insectivorous plants (Cheap edition.). Murray.

Chicago Style (17th ed.) Citation

Darwin, Charles, and Francis Darwin. Insectivorous Plants. Cheap edition. London: Murray, 1908.

MLA (9th ed.) Citation

Darwin, Charles, and Francis Darwin. Insectivorous Plants. Cheap edition. Murray, 1908.

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