Παραπομπή σε μορφή APA (7η εκδ.)

Foster, R. G. (2010). Seasons of life: The biological rhythms that enable living things to thrive and survive.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Foster, Russell G. Seasons of Life: The Biological Rhythms That Enable Living Things to Thrive and Survive. Great Britain; Profile Books Ltd, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

Foster, Russell G. Seasons of Life: The Biological Rhythms That Enable Living Things to Thrive and Survive. 2010.