Παραπομπή APA

N Ashok & S Rajathi. (2005). Post-hatch development of preen gland in the duck ( Anas platyrhynchos ) (MVSC.). College of veterinery and animal science.

Παραπομπή Chicago Style

N Ashok και S Rajathi. Post-hatch Development of Preen Gland in the Duck ( Anas Platyrhynchos ). MVSC. College of veterinery and animal science, 2005.

Παραπομπή MLA

N Ashok και S Rajathi. Post-hatch Development of Preen Gland in the Duck ( Anas Platyrhynchos ). MVSC. College of veterinery and animal science, 2005.