Sokolik, M. E., & Krasny, M. (2010). Sound ideas. McGraw-Hill Higher Education.
Cita Chicago (17th ed.)Sokolik, M. E., i Michael Krasny. Sound Ideas. New York, NY: McGraw-Hill Higher Education, 2010.
Cita MLA (9th ed.)Sokolik, M. E., i Michael Krasny. Sound Ideas. McGraw-Hill Higher Education, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.