APA (7th ed.) Citation

Taylor, N. P. (1985). The genus Echinocereus (1. publ.). Royal Botanic Gardens u.a.

Chicago Style (17th ed.) Citation

Taylor, Nigel P. The Genus Echinocereus. 1. publ. Kew u.a: Royal Botanic Gardens u.a, 1985.

MLA (9th ed.) Citation

Taylor, Nigel P. The Genus Echinocereus. 1. publ. Royal Botanic Gardens u.a, 1985.