Bernard, Harold W.. Mental Hygiene for Classroom Teachers / Textual Documents Harold W.Bernard. - 1st ed. / - New York : McGraw - Hill book company , C1961. - 497p. : ill ; 22cm . Index ISBN: PB Subjects--Index Terms: Education Mental Hygiene Teachers-Mental Hygiene Educational Psychology G-Education Dewey Class. No.: 370.15 / B 456 M