Erdos, Renee F.
Teaching by correspondence : a study undertaken / Renee F. Erdos. - London : Longmans, c 1967. - xvi, 218 p. : ill. ; 23 cm.
Includes index.
Bibliography : p. 213-214.
337 337
Correspondence schools and courses.
374.4 / E29t
Teaching by correspondence : a study undertaken / Renee F. Erdos. - London : Longmans, c 1967. - xvi, 218 p. : ill. ; 23 cm.
Includes index.
Bibliography : p. 213-214.
337 337
Correspondence schools and courses.
374.4 / E29t