APA (7th ed.) Citation

Botanical Society of the British Isles, Perring, F., & Walters, S. M. (1976). Atlas of the British flora / edited by F.H. Perring and S.M. Walters (2nd ed.). EP Publishing for the Botanical Society of the British Isles.

Chicago Style (17th ed.) Citation

Botanical Society of the British Isles, Franklyn Perring, and S. M. Walters. Atlas of the British Flora / Edited by F.H. Perring and S.M. Walters. 2nd ed. Wakefield: EP Publishing for the Botanical Society of the British Isles, 1976.

MLA (9th ed.) Citation

Botanical Society of the British Isles, et al. Atlas of the British Flora / Edited by F.H. Perring and S.M. Walters. 2nd ed. EP Publishing for the Botanical Society of the British Isles, 1976.

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