Citazione APA

John D Summers, John D Summers, & Steven Leeson. (2001). Broiler breeder production (1.). International Book Distributing company.

Stile di citazione Chicago

John D Summers, John D Summers, e Steven Leeson. Broiler Breeder Production. 1. International Book Distributing company, 2001.

Citazione MLA

John D Summers, et al. Broiler Breeder Production. 1. International Book Distributing company, 2001.