APA (7th ed.) Citation

Gilmour, J. S. L., Greatwood, J., & Hunt, P. F. (1976). Handbook on orchid nomenclature and registration (2nd ed.). The Commission.

Chicago Style (17th ed.) Citation

Gilmour, J. S. L., J. Greatwood, and P. Francis Hunt. Handbook on Orchid Nomenclature and Registration. 2nd ed. London (Royal Horticultural Society, Vincent Sq., SW1P 2PE): The Commission, 1976.

MLA (9th ed.) Citation

Gilmour, J. S. L., et al. Handbook on Orchid Nomenclature and Registration. 2nd ed. The Commission, 1976.