Piotrow,Phyllis T. (1994). Strategies for family planning promotion. World Bank.
Chicago Style aipamenaPiotrow,Phyllis T. Strategies for Family Planning Promotion. Washington: World Bank, 1994.
MLA aipamenaPiotrow,Phyllis T. Strategies for Family Planning Promotion. World Bank, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.