Cita APA

Keith, L. G., Blake, P., & Tiedt, L. (1968). Contemporary curriculum in the elementary school. New York: Harper & row.

Citación estilo Chicago

Keith, Lowell G.,, Paul Blake, y Lidney Tiedt. Contemporary Curriculum in the Elementary School. New York: Harper & row, 1968.

Cita MLA

Keith, Lowell G.,, Paul Blake, y Lidney Tiedt. Contemporary Curriculum in the Elementary School. New York: Harper & row, 1968.