APA (7 वां संस्करण) प्रशस्ति पत्र

TOWNSEND, C. B. (2002). WORLD'S MOST AMAZING PUZZLES (1st.). ORIENT PAPERBACKS.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

TOWNSEND, CHARLES. BARRY. WORLD'S MOST AMAZING PUZZLES. 1st. NEW DELHI: ORIENT PAPERBACKS, 2002.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

TOWNSEND, CHARLES. BARRY. WORLD'S MOST AMAZING PUZZLES. 1st. ORIENT PAPERBACKS, 2002.