Aragon, G. T., & Gutierrez, R. I. (1976). Field manual on surgical sterilization. Study and Training Center for Surgical Sterilization, Dept. of Obstetrics and Gynecology, College of Medicine, University of the Philippines-Philippine General Hospital.
Cita Chicago (17th ed.)Aragon, Gloria T., i Rosario Isidro Gutierrez. Field Manual on Surgical Sterilization. Manila: Study and Training Center for Surgical Sterilization, Dept. of Obstetrics and Gynecology, College of Medicine, University of the Philippines-Philippine General Hospital, 1976.
Cita MLA (9th ed.)Aragon, Gloria T., i Rosario Isidro Gutierrez. Field Manual on Surgical Sterilization. Study and Training Center for Surgical Sterilization, Dept. of Obstetrics and Gynecology, College of Medicine, University of the Philippines-Philippine General Hospital, 1976.