APA (7 वां संस्करण) प्रशस्ति पत्र

HAPKA, C. (2013). DISNEY WINNIE THE POOH: FRIENDLY BOTHERS - A BOOK ABOUT BEING PATIENT WITH OUR FRIENDS. SHREE BOOK CENTRE.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

HAPKA, CATHERINE. DISNEY WINNIE THE POOH: FRIENDLY BOTHERS - A BOOK ABOUT BEING PATIENT WITH OUR FRIENDS. MUMBAI: SHREE BOOK CENTRE, 2013.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

HAPKA, CATHERINE. DISNEY WINNIE THE POOH: FRIENDLY BOTHERS - A BOOK ABOUT BEING PATIENT WITH OUR FRIENDS. SHREE BOOK CENTRE, 2013.