Payumo, P. R., & Ferrer, D. C. (1972). Philippine and international radio laws and regulations (with explanations). National Book Store.
Chicago-viite (17. p.)Payumo, Pablo R., ja Daniel C. Ferrer. Philippine and International Radio Laws and Regulations (with Explanations). Manila: National Book Store, 1972.
MLA-viite (9. p.)Payumo, Pablo R., ja Daniel C. Ferrer. Philippine and International Radio Laws and Regulations (with Explanations). National Book Store, 1972.
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