Citazione Stile APA (7a Edizione)

Johansson, P., & Lofgren, K. (1985). The economics of forestry and natural resources. Basil Blackwell.

Citazione stile Chigago Style (17a edizione)

Johansson, Per-Olov, e Karl-Gustaf Lofgren. The Economics of Forestry and Natural Resources. Oxford: Basil Blackwell, 1985.

Citatione MLA (9a ed.)

Johansson, Per-Olov, e Karl-Gustaf Lofgren. The Economics of Forestry and Natural Resources. Basil Blackwell, 1985.