APA (7th ed.) Citation

Pridgeon, A. M., Cribb, P. J., & Chase, M. W. (1999). Genera Orchidacearum: Volume 1: General Introduction, Apostasioideae, Cypripedioideae. Oxford University Press.

Chicago Style (17th ed.) Citation

Pridgeon, Alec M., Phillip J. Cribb, and Mark W. Chase. Genera Orchidacearum: Volume 1: General Introduction, Apostasioideae, Cypripedioideae. Oxford: Oxford University Press, 1999.

MLA (9th ed.) Citation

Pridgeon, Alec M., et al. Genera Orchidacearum: Volume 1: General Introduction, Apostasioideae, Cypripedioideae. Oxford University Press, 1999.