APA (7th ed.) Citation

Raven, P. H., & Curtis, H. (1970). Biology of plants. Worth Publishers.

Chicago Style (17th ed.) Citation

Raven, Peter H., and Helena Curtis. Biology of Plants. New York: Worth Publishers, 1970.

MLA (9th ed.) Citation

Raven, Peter H., and Helena Curtis. Biology of Plants. Worth Publishers, 1970.