APA (7 वां संस्करण) प्रशस्ति पत्र

WREN P C & MARTIN H. (2022). HIGH SCHOOL ENGLISH GRAMMAR & COMPOSITION REGULAR EDITION (2022.). BLACKIE BOOKS.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

WREN P C & MARTIN H. HIGH SCHOOL ENGLISH GRAMMAR & COMPOSITION REGULAR EDITION. 2022. NEW DELHI: BLACKIE BOOKS, 2022.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

WREN P C & MARTIN H. HIGH SCHOOL ENGLISH GRAMMAR & COMPOSITION REGULAR EDITION. 2022. BLACKIE BOOKS, 2022.