APA (7th ed.) Citation

Tigerstedt, P. M. A., Puttonen, P., & Koski, V. (1985). Crop physiology of forest trees. Helsinki University Press.

Chicago Style (17th ed.) Citation

Tigerstedt, Peter M. A., Pasi Puttonen, and Veikko Koski. Crop Physiology of Forest Trees. Helsinki: Helsinki University Press, 1985.

MLA (9th ed.) Citation

Tigerstedt, Peter M. A., et al. Crop Physiology of Forest Trees. Helsinki University Press, 1985.