Παραπομπή σε μορφή APA (7η εκδ.)

Sayer, A., Cooper, C., Osmond, C., Barker, D., Evans, J., Rauf, A., & Wormald, R. (1999). Are rates of ageing determined in utero? Reply.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sayer, A., C. Cooper, C. Osmond, D. Barker, J. Evans, A. Rauf, και R. Wormald. Are Rates of Ageing Determined in Utero? Reply. 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sayer, A., et al. Are Rates of Ageing Determined in Utero? Reply. 1999.