Payumo, P. R., & Ferrer, D. C. (1974). Philippine and international radio laws and regulations: With explanations (Revised edition.). National Book Store.
Citazione stile Chigago Style (17a edizione)Payumo, Pablo R., e Daniel C. Ferrer. Philippine and International Radio Laws and Regulations: With Explanations. Revised edition. [Manila]: National Book Store, 1974.
Citatione MLA (9a ed.)Payumo, Pablo R., e Daniel C. Ferrer. Philippine and International Radio Laws and Regulations: With Explanations. Revised edition. National Book Store, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.