APA (7th ed.) Citation

Hanzák, J., Formánek, J., & Steward, L. (1977). The illustrated encyclopedia of birds. Octopus Books.

Chicago Style (17th ed.) Citation

Hanzák, Jan, Jiří Formánek, and Laura Steward. The Illustrated Encyclopedia of Birds. London: Octopus Books, 1977.

MLA (9th ed.) Citation

Hanzák, Jan, et al. The Illustrated Encyclopedia of Birds. Octopus Books, 1977.