Survey, W. F., & Institute, I. S. Occasional papers / World Fertility Survey, International Statistical Institute. Voorburg [u.a.].
استشهاد بنمط شيكاغوSurvey, World Fertility, و International Statistical Institute. Occasional Papers / World Fertility Survey, International Statistical Institute. Voorburg [u.a.].
MLA استشهادSurvey, World Fertility, و International Statistical Institute. Occasional Papers / World Fertility Survey, International Statistical Institute. Voorburg [u.a.].
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.