Requintina, R. R. (2001). Survey stresses family planning important. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Requintina, Robert R. "Survey Stresses Family Planning Important." Manila Bulletin 2001.
Lua MLA (9ú heag.)Requintina, Robert R. "Survey Stresses Family Planning Important." Manila Bulletin, 2001.
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