APA (7th ed.) Citation

Squillace, A. E. (1966). Geographic variation in slash pine. Society of American Foresters.

Chicago Style (17th ed.) Citation

Squillace, A. E. Geographic Variation in Slash Pine. [Washington, D.C.]: Society of American Foresters, 1966.

MLA (9th ed.) Citation

Squillace, A. E. Geographic Variation in Slash Pine. Society of American Foresters, 1966.