Population, Resources, Environment and the Philippine Future. (1978). Population, Resources, Environment and the Philippine Future: PREPF general papers. PREPF.
Chicago-viite (17. p.)Population, Resources, Environment and the Philippine Future. Population, Resources, Environment and the Philippine Future: PREPF General Papers. Quezon City: PREPF, 1978.
MLA-viite (9. p.)Population, Resources, Environment and the Philippine Future. Population, Resources, Environment and the Philippine Future: PREPF General Papers. PREPF, 1978.
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