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

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

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