Cita APA (7th ed.)
Krause, E. F. (1987). Mathematics for elementary teachers: A balanced approach. D.C. Heath.
Cita Chicago (17th ed.)
Krause, Eugene F. Mathematics for Elementary Teachers: A Balanced Approach. Lexington, Mass.: D.C. Heath, 1987.
Cita MLA (9th ed.)
Krause, Eugene F. Mathematics for Elementary Teachers: A Balanced Approach. D.C. Heath, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.