Cita APA (7th ed.)
Jacobs, J., & Lange, O. L. (1975). Ecological studies: Analysis and synthesis. Springer.
Cita Chicago (17th ed.)
Jacobs, Jürgen, i Otto Ludwig Lange. Ecological Studies: Analysis and Synthesis. Berlin, Heidelberg, New York: Springer, 1975.
Cita MLA (9th ed.)
Jacobs, Jürgen, i Otto Ludwig Lange. Ecological Studies: Analysis and Synthesis. Springer, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.