Cita APA (7a ed.)

Engelman, G., & Dowell, A. A. (1950). Marketing Slaughter Hogs by Carcass Weight and Grade.

Cita Chicago Style (17a ed.)

Engelman, Gerald, y Austin A. Dowell. Marketing Slaughter Hogs by Carcass Weight and Grade. Minnesota, 1950.

Cita MLA (9a ed.)

Engelman, Gerald, y Austin A. Dowell. Marketing Slaughter Hogs by Carcass Weight and Grade. 1950.