Citazione Stile APA (7a Edizione)

Kessell, S. R. (1979). Gradient modeling: Resource and fire management. Springer.

Citazione stile Chigago Style (17a edizione)

Kessell, Stephen R. Gradient Modeling: Resource and Fire Management. Nueva York: Springer, 1979.

Citatione MLA (9a ed.)

Kessell, Stephen R. Gradient Modeling: Resource and Fire Management. Springer, 1979.