APA (7th ed.) Citation

Barrett, C., & Burns, A. N. (1951). Butterflies of Australia and New Guinea. N. H. Seward.

Chicago Style (17th ed.) Citation

Barrett, Charles, and A. N. Burns. Butterflies of Australia and New Guinea. Melbourne: N. H. Seward, 1951.

MLA (9th ed.) Citation

Barrett, Charles, and A. N. Burns. Butterflies of Australia and New Guinea. N. H. Seward, 1951.