APA (7th ed.) Citation

Lavarack, P. S., Gray, B., & Dockrill, A. W. (1985). Tropical orchids of Australia. Nelson.

Chicago Style (17th ed.) Citation

Lavarack, P. S., B. Gray, and A. W. Dockrill. Tropical Orchids of Australia. Melbourne: Nelson, 1985.

MLA (9th ed.) Citation

Lavarack, P. S., et al. Tropical Orchids of Australia. Nelson, 1985.