APA (7th ed.) Citation

Schelpe, S., & Stewart, J. (1990). Dendrobiums: An introduction to the species in cultivation. Orchid Sundries.

Chicago Style (17th ed.) Citation

Schelpe, Sybella, and Joyce Stewart. Dendrobiums: An Introduction to the Species in Cultivation. Stour Provost, Dorset: Orchid Sundries, 1990.

MLA (9th ed.) Citation

Schelpe, Sybella, and Joyce Stewart. Dendrobiums: An Introduction to the Species in Cultivation. Orchid Sundries, 1990.