Singh, R., & Sunita Sengar. (2007). Library collection development and acquisition system. Shree Publishers.
استشهاد بنمط شيكاغوSingh, R.K, و Sunita Sengar. Library Collection Development and Acquisition System. New Delhi: Shree Publishers, 2007.
MLA استشهادSingh, R.K, و Sunita Sengar. Library Collection Development and Acquisition System. Shree Publishers, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.