APA (7th ed.) Citation

Polunin, O., & Smythies, B. E. (1988). Flowers of South-West Europe: A field guide. Oxford Univ. Pr.

Chicago Style (17th ed.) Citation

Polunin, Oleg, and Bertram E. Smythies. Flowers of South-West Europe: A Field Guide. Oxford u. a: Oxford Univ. Pr, 1988.

MLA (9th ed.) Citation

Polunin, Oleg, and Bertram E. Smythies. Flowers of South-West Europe: A Field Guide. Oxford Univ. Pr, 1988.