Cita APA (7a ed.)

Kramer, P., & Kozlowski, T. (1960). Physiology of trees. Mc Graw- Hill.

Cita Chicago Style (17a ed.)

Kramer, Paul, y Theodore Kozlowski. Physiology of Trees. New York: Mc Graw- Hill, 1960.

Cita MLA (8a ed.)

Kramer, Paul, y Theodore Kozlowski. Physiology of Trees. Mc Graw- Hill, 1960.