Gruhn, William Theodore. The modern junior high school, [electronic resource] / by William T. Gruhn and Harl R. Douglass.. — 2d ed.. — New York, : Ronald Press Co., [1956]. — 421 p. : illus. 24 cm. — (Douglass series in education).



56006805


Junior high schools.
Écoles secondaires.

LB1623 / .G7 1956

373