TY  - BOOK
AU  - Ryburn,W.M.
TI  - The principles of teaching
U1  - 370.1/RYS 
PY  - 1971///
CY  - Bombay
PB  - Oxford University Press
KW  - Education
KW  - Philosophy and theory of education
N1  - Includes bibliographical references and index
ER  -