Παραπομπή σε μορφή APA (7η εκδ.)

Hudson, I. L., & Keatley, M. R. (2010). Phenological Research: Methods for Environmental and Climate Change Analysis. Springer Science+Business Media B.V.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hudson, Irene L., και Marie R. Keatley. Phenological Research: Methods for Environmental and Climate Change Analysis. Dordrecht: Springer Science+Business Media B.V, 2010.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hudson, Irene L., και Marie R. Keatley. Phenological Research: Methods for Environmental and Climate Change Analysis. Springer Science+Business Media B.V, 2010.