APA (7 वां संस्करण) प्रशस्ति पत्र

Trafton, P. R. (1989). New directions for elementary school mathematics. National Council of Teachers of Mathematics.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Trafton, Paul R. New Directions for Elementary School Mathematics. Reston, Va.: National Council of Teachers of Mathematics, 1989.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Trafton, Paul R. New Directions for Elementary School Mathematics. National Council of Teachers of Mathematics, 1989.