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.
Cita Chicago (17th ed.)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.
Cita MLA (9th ed.)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.