TY  - BOOK
AU  - Anderson,Vernon Ellsworth
AU  - Gruhn,William Theodore
TI  - Principles and practices of secondary education
T2  - Douglass series in education
PY  - 1962///
CY  - New York
PB  - Ronald Press
KW  - Education, Secondary
KW  - Local
N1  - Photocopy. Ann Arbor, Mich. : University Microfilms International, 1980
ER  -