Intellectual disability  perspectives & challenges  proceedings of the 8th. Asian conference on mental retardation Novemver 14-19, 1987, Singapore 
edited by Francis C. Chen ...(et al.) 
 - Singapore  Committee for the Promotion of Services for the Intellectually Disabled  1987 
 - ix, 509 p. : ill. ; 27 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation--Congresses