Cita APA (7th ed.)

KRAMER, P. J., & KOZLOWSKI, T. T. (1960). Physiology of trees. Mcgraw-hill.

Cita Chicago (17th ed.)

KRAMER, Paul J., i Theodore T. KOZLOWSKI. Physiology of Trees. New York: Mcgraw-hill, 1960.

Cita MLA (9th ed.)

KRAMER, Paul J., i Theodore T. KOZLOWSKI. Physiology of Trees. Mcgraw-hill, 1960.

Atenció: Aquestes cites poden no estar 100% correctes.