Cita APA (7th ed.)

ECK, P. (1966). Blueberry culture. Rutgers University Pr..

Cita Chicago (17th ed.)

ECK, Paul. Blueberry Culture. New Brunswick, N. J.: Rutgers University Pr., 1966.

Cita MLA (9th ed.)

ECK, Paul. Blueberry Culture. Rutgers University Pr., 1966.