APA aipamena

Ragan, W. B. (1961). Modern elementary curriculum.

Chicago Style aipamena

Ragan, William B. Modern Elementary Curriculum. New York, Holt, 1961.

MLA aipamena

Ragan, William B. Modern Elementary Curriculum. 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.