Puchner, L. D., & Wagner, D. A. (1992). World literacy in the year 2000. Sage Pub.
Cita Chicago (17th ed.)Puchner, Laurel D., i Daniel A. Wagner. World Literacy in the Year 2000. Newbury Park, Calif: Sage Pub, 1992.
Cita MLA (9th ed.)Puchner, Laurel D., i Daniel A. Wagner. World Literacy in the Year 2000. Sage Pub, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.