Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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