APA (7th ed.) Citation

Knoebel, B. R., Burkhart, H. E., & Beck, D. E. (1986). A growth and yield model for thinned stands of yellow-poplar. Society of American Foresters.

Chicago Style (17th ed.) Citation

Knoebel, Bruce R., Harold E. Burkhart, and Donald E. Beck. A Growth and Yield Model for Thinned Stands of Yellow-poplar. Washington, D.C.: Society of American Foresters, 1986.

MLA (9th ed.) Citation

Knoebel, Bruce R., et al. A Growth and Yield Model for Thinned Stands of Yellow-poplar. Society of American Foresters, 1986.