APA (7th ed.) Zitazioa

Steffen, M. R. (1915). Special cattle therapy. American journal of veterinary therapy.

Chicago Style (17th ed.) Zitazioa

Steffen, Martin Robert. Special Cattle Therapy. Chicago: American journal of veterinary therapy, 1915.

MLA (9th ed.) Zitazioa

Steffen, Martin Robert. Special Cattle Therapy. American journal of veterinary therapy, 1915.