APA (7th ed.) Citation

Hansen, P. E., & Jørgensen, S. E. (1991). Introduction to environmental management. Elsevier.

Chicago Style (17th ed.) Citation

Hansen, P. E., and Sven Erik Jørgensen. Introduction to Environmental Management. Amsterdam: Elsevier, 1991.

MLA (9th ed.) Citation

Hansen, P. E., and Sven Erik Jørgensen. Introduction to Environmental Management. Elsevier, 1991.