Palazo, M. M. (1972). Philippine postal service and its proposed reforms.
Citazione stile Chigago Style (17a edizione)Palazo, Mariano M. Philippine Postal Service and Its Proposed Reforms. Quezon City, 1972.
Citatione MLA (9a ed.)Palazo, Mariano M. Philippine Postal Service and Its Proposed Reforms. 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.