APA (7th ed.) Citation

South, R. (1921). The butterflies of the British Isles / by R. South (2nd ed.). Wane.

Chicago Style (17th ed.) Citation

South, R. The Butterflies of the British Isles / by R. South. 2nd ed. Wane, 1921.

MLA (9th ed.) Citation

South, R. The Butterflies of the British Isles / by R. South. 2nd ed. Wane, 1921.

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