Cita APA

Young, J. W. A. (1920). The teaching of mathematics in the elementary and the secondary school. New York: Longmans, Green and Co.

Citación estilo Chicago

Young, J. W. A. The Teaching of Mathematics in the Elementary and the Secondary School. New York: Longmans, Green and Co, 1920.

Cita MLA

Young, J. W. A. The Teaching of Mathematics in the Elementary and the Secondary School. New York: Longmans, Green and Co, 1920.