Cita APA (7th ed.)

SHUMWAY, R. J. (1980). Research in mathematic education. The National Council.

Cita Chicago (17th ed.)

SHUMWAY, Richard J. Research in Mathematic Education. Virginia: The National Council, 1980.

Cita MLA (9th ed.)

SHUMWAY, Richard J. Research in Mathematic Education. The National Council, 1980.