Bennett, A. B., & Nelson, L. T. Mathematics for elementary teachers: A conceptual approach.
Cita Chicago (17th ed.)Bennett, Albert B., i L. Ted Nelson. Mathematics for Elementary Teachers: A Conceptual Approach.
Cita MLA (9th ed.)Bennett, Albert B., i L. Ted Nelson. Mathematics for Elementary Teachers: A Conceptual Approach.
Atenció: Aquestes cites poden no estar 100% correctes.