APA aipamena

Belfrage, S. H. (1927). The Physiology of Defaecation.

Chicago Style aipamena

Belfrage, S. Henning. The Physiology of Defaecation. 1927.

MLA aipamena

Belfrage, S. Henning. The Physiology of Defaecation. 1927.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.