TY  - BOOK
AU  - Bent,Rudyard K.
AU  - Kronenberg,Henry H.
AU  -  Boardman,Charles C.
TI  - Principles of secondary education 
U1  - 373 BEN 
PY  - 1955///.
CY  - New York : 
PB  - McGraw-Hill Book Company, Inc., 
KW  - Education, Secondary
KW  - Education Kronenberg, Henry H.
KW  - High schools
N1  - Includes index.
ER  -