Pulido, P. N. (1980). Pag-unlad at pagbabago = Development and progress socio-economic problems. Phil. Book Co.
Citace podle Chicago (17th ed.)Pulido, Paz N. Pag-unlad at Pagbabago = Development and Progress Socio-economic Problems. Manila: Phil. Book Co, 1980.
Citace podle MLA (9th ed.)Pulido, Paz N. Pag-unlad at Pagbabago = Development and Progress Socio-economic Problems. Phil. Book Co, 1980.
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