Cita APA (7a ed.)

Hecker, J. F. (1974). Experimental surgery on small ruminants. Butterworths.

Cita Chicago Style (17a ed.)

Hecker, Jonh F. Experimental Surgery on Small Ruminants. London [etc.]: Butterworths, 1974.

Cita MLA (9a ed.)

Hecker, Jonh F. Experimental Surgery on Small Ruminants. Butterworths, 1974.