Clarke Ann M Ed. Mental deficiency The changing outlook Clarke Ann M Ed.; Clarke A D B Ed. - 3rd - London Methuen & Co Ltd. UK 1958 - xx,886p. cm. - Methuen's manuals of posychology ed by H J Butcher . Standard No.: 83,741 Source: Textual Subjects--Topical Terms: PSYCHOLOGY Dewey Class. No.: S63x, J8;L4