Text ( visual ) : unmediated Mental retardation : official publication of American Association on Mental Deficiency / American Association on Mental Deficiency. -- Vol. 1 (Feb. 1963)-v. 44, no. 6 (Dec. 2006). -- New York : American Association on Mental Deficiency , 1963-c2006. -- 44 v. : ill. ; 24-28 cm. -- Height of v. 39 (2001)-: 28 cm. ; Published: Washington, D.C. : American Association on Mental Retardation (-v. 44, no. 6 (Dec. 2006)) ; continued by : Intellectual and developmental disabilities : a journal of policy, practice, and perspectives : publication of the American Association on Intellectual and Developmental Disabilities. -- ISSN 00476765 ; (AA00297277) ; https://ci.nii.ac.jp/ncid/AA00297277 Other Title(s): Ment. retard (Wash.) ; Mental retardation (Washington). -- Author Heading(s): American Association on Mental Deficiency. -- Subject Heading(s): LCSH : Mental retardation -- Periodicals