Lao, M. V. (1976). Some characteristics of ever-married ever-pregnant women 49 years old in PGE sample areas who reported themselves as never ever having used any planning method. Bohol Province MCH/FP Project.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lao, Menelea V. Some Characteristics of Ever-married Ever-pregnant Women 49 Years Old in PGE Sample Areas Who Reported Themselves as Never Ever Having Used Any Planning Method. Tagbilaran City: Bohol Province MCH/FP Project, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Lao, Menelea V. Some Characteristics of Ever-married Ever-pregnant Women 49 Years Old in PGE Sample Areas Who Reported Themselves as Never Ever Having Used Any Planning Method. Bohol Province MCH/FP Project, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.