APA (7th ed.) Citation

Kallio, M., Propoj, A. I., & Seppälä, R. (1985). A model for the forest sector. International Institute for Applied Systems Analysis.

Chicago Style (17th ed.) Citation

Kallio, Markku, Anatolij Ivanovič Propoj, and Risto Seppälä. A Model for the Forest Sector. Laxenburg: International Institute for Applied Systems Analysis, 1985.

MLA (9th ed.) Citation

Kallio, Markku, et al. A Model for the Forest Sector. International Institute for Applied Systems Analysis, 1985.