APA (7th ed.) Citation

Lewis, B., & Cribb, P. (1989). Orchids of Vanuatu. Royal Botanic Gardens, Kew.

Chicago Style (17th ed.) Citation

Lewis, B., and P. Cribb. Orchids of Vanuatu. Richmond, Eng.: Royal Botanic Gardens, Kew, 1989.

MLA (9th ed.) Citation

Lewis, B., and P. Cribb. Orchids of Vanuatu. Royal Botanic Gardens, Kew, 1989.