APA (7th ed.) Citation

Heisler, G. M., & Wagar, J. A. (1986). Rating winter crown density of deciduous trees: A photographic procedure. Landscape Journal, 5(1), 9.

Chicago Style (17th ed.) Citation

Heisler, Gordon M., and J. Alan Wagar. "Rating Winter Crown Density of Deciduous Trees: A Photographic Procedure." Landscape Journal 5, no. 1 (1986): 9.

MLA (9th ed.) Citation

Heisler, Gordon M., and J. Alan Wagar. "Rating Winter Crown Density of Deciduous Trees: A Photographic Procedure." Landscape Journal, vol. 5, no. 1, 1986, p. 9.