Παραπομπή σε μορφή APA (7η εκδ.)

Pickett, S. T., Kolasa, J., & Jones, C. G. (2007). Ecological understanding: The nature of theory and the theory of nature (2nd ed.). Elsevier/Academic Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pickett, Steward T., Jurek Kolasa, και Clive G. Jones. Ecological Understanding: The Nature of Theory and the Theory of Nature. 2nd ed. Amsterdam ; Boston: Elsevier/Academic Press, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pickett, Steward T., et al. Ecological Understanding: The Nature of Theory and the Theory of Nature. 2nd ed. Elsevier/Academic Press, 2007.