Παραπομπή APA

J L Krider & W E Carroll. (1971). Swine production. Mc Graw Hill Book company Inc.

Παραπομπή Chicago Style

J L Krider και W E Carroll. Swine Production. Mc Graw Hill Book company Inc, 1971.

Παραπομπή MLA

J L Krider και W E Carroll. Swine Production. Mc Graw Hill Book company Inc, 1971.