APA (7th ed.) Citation

Bechtel, H., Cribb, P. J., & Launert, E. (1991). The manual of cultivated orchid species (3. ed.). Blandford.

Chicago Style (17th ed.) Citation

Bechtel, Helmut, Philip J. Cribb, and Edmund Launert. The Manual of Cultivated Orchid Species. 3. ed. London: Blandford, 1991.

MLA (9th ed.) Citation

Bechtel, Helmut, et al. The Manual of Cultivated Orchid Species. 3. ed. Blandford, 1991.