by Abelson, Robert B., Ed
Year of Publication 1983

by Abelson, Robert B, Payne, Dan
Published in Amer J Ment Deficiency (1969)

by Johnson, Ronald C, Abelson, Robert B
Published in Amer J Ment Deficiency (1969)

by Abelson, Robert B, Johnson, Ronald C
Published in Amer J Ment Deficiency (1969)

by Abelson, Robert B, Johnson, Ronald C
Published in Mental retardation (Washington) (1969)

by Abelson, R B, Payne, D
Published in American journal of mental deficiency (01.03.1969)

by Johnson, R C, Abelson, R B
Published in American journal of mental deficiency (01.05.1969)

by Johnson, R C, Abelson, R B
Published in American journal of mental deficiency (01.05.1969)