Philippines. Department of Public Works, Transportation and Communications, & Planning and Project Development Office. (1976). Pampanga Delta Area Development Project: Interim report I. PPDO, DPWTC.
Citace podle Chicago (17th ed.)Philippines. Department of Public Works, Transportation and Communications, a Planning and Project Development Office. Pampanga Delta Area Development Project: Interim Report I. [Quezon City]: PPDO, DPWTC, 1976.
Citace podle MLA (9th ed.)Philippines. Department of Public Works, Transportation and Communications, a Planning and Project Development Office. Pampanga Delta Area Development Project: Interim Report I. PPDO, DPWTC, 1976.
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