Azar, B. S. (1991). Understanding and Using English Grammar. Englewood Cliffs, New Jersey: Prentice-Hall.
शिकागो स्टाइल उद्धरणAzar, Betty Schrampfer. Understanding and Using English Grammar. Englewood Cliffs, New Jersey: Prentice-Hall, 1991.
एमएलए उद्धरणAzar, Betty Schrampfer. Understanding and Using English Grammar. Englewood Cliffs, New Jersey: Prentice-Hall, 1991.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.