APA (7th ed.) Citation

Likens, G. E. (1989). Long-term studies in ecology: Approaches and alternatives (1. print.). Springer.

Chicago Style (17th ed.) Citation

Likens, Gene E. Long-term Studies in Ecology: Approaches and Alternatives. 1. print. New York u.a: Springer, 1989.

MLA (9th ed.) Citation

Likens, Gene E. Long-term Studies in Ecology: Approaches and Alternatives. 1. print. Springer, 1989.