Wagelie, E. G. (1977). Study on some physical and chemical characteristics of Berkshire boar semen including effects of atmospheric temperature at collection time [microform]. Photoduplication Service. University of the Philippines Library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Wagelie, Edwin G. Study on Some Physical and Chemical Characteristics of Berkshire Boar Semen Including Effects of Atmospheric Temperature at Collection Time [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Παραπομπή σε μορφή MLA (9th εκδ.)Wagelie, Edwin G. Study on Some Physical and Chemical Characteristics of Berkshire Boar Semen Including Effects of Atmospheric Temperature at Collection Time [microform]. Photoduplication Service. University of the Philippines Library, 1977.