Παραπομπή σε μορφή APA (7η εκδ.)

PETTIGREW, T. J. (2014). On superstitions connected with the history and practice of medicine and surgery. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

PETTIGREW, Thomas Joseph. On Superstitions Connected with the History and Practice of Medicine and Surgery. Cambridge University Press, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

PETTIGREW, Thomas Joseph. On Superstitions Connected with the History and Practice of Medicine and Surgery. Cambridge University Press, 2014.