R C Sharma. (1988). Population, resources, environment and quality of life. New Delhi: Dhanpat Rai and Sons.
استشهاد بنمط شيكاغوR C Sharma. Population, Resources, Environment and Quality of Life. New Delhi: Dhanpat Rai and Sons, 1988.
MLA استشهادR C Sharma. Population, Resources, Environment and Quality of Life. New Delhi: Dhanpat Rai and Sons, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.