Cita APA (7th ed.)
Sovchik, R. J. (1989). Teaching mathematics to children. Harper & Row.
Cita Chicago (17th ed.)
Sovchik, Robert J. Teaching Mathematics to Children. New York: Harper & Row, 1989.
Cita MLA (9th ed.)
Sovchik, Robert J. Teaching Mathematics to Children. Harper & Row, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.