Gurtu, J. N., & Kapoor, R. R. (1991). I I T. chemistry: For all engineering competetive examination. S. Chand.
शिकागो स्टाइल उद्धरणGurtu, J N., और R Rana Kapoor. I I T. Chemistry: For All Engineering Competetive Examination. New Delhi: S. Chand, 1991.
एमएलए उद्धरणGurtu, J N., और R Rana Kapoor. I I T. Chemistry: For All Engineering Competetive Examination. S. Chand, 1991.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.