APA (7 वां संस्करण) प्रशस्ति पत्र

ELDIN PETER. (2003). THE WORLD OF AMAZING FACTS FANTASTIC FACTS AND QUESTIONS AND ANSWERS. GRANDREAMS BOOKS LIMITED.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

ELDIN PETER. THE WORLD OF AMAZING FACTS FANTASTIC FACTS AND QUESTIONS AND ANSWERS. UK: GRANDREAMS BOOKS LIMITED, 2003.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

ELDIN PETER. THE WORLD OF AMAZING FACTS FANTASTIC FACTS AND QUESTIONS AND ANSWERS. GRANDREAMS BOOKS LIMITED, 2003.