APA (7th ed.) Citation

Dufay, F. R. (1966). Ungrading the elementary school. Parker Pub.

Chicago Style (17th ed.) Citation

Dufay, Frank R. Ungrading the Elementary School. West Nyack, N.Y: Parker Pub, 1966.

MLA (9th ed.) Citation

Dufay, Frank R. Ungrading the Elementary School. Parker Pub, 1966.