APA (7th ed.) Citation

Procter, R. (1972). Ray procter trees of the world. Hamiyn.

Chicago Style (17th ed.) Citation

Procter, Ray. Ray Procter Trees of the World. London: Hamiyn, 1972.

MLA (9th ed.) Citation

Procter, Ray. Ray Procter Trees of the World. Hamiyn, 1972.

Warning: These citations may not always be 100% accurate.