(1999). Stressed women less likely to give birth. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Stressed Women Less Likely to Give Birth." Manila Bulletin 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Stressed Women Less Likely to Give Birth." Manila Bulletin, 1999.
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