Blacks -- Intelligence levels

A follow-up normative study of Negro intelligence and achievement

Wallace A. Kennedy.

Why race matters: race differences and what they mean

Michael Levin.

Genetic diversity and human equality

[by] Theodosius Dobzhansky. Foreword by Ward Madden.

Negro intelligence and selective migration.

Otto Klineberg

Early patterns of cognitive development

Vernon C. Hall, Daniel B. Kaye ; project staff, Marc Baron ... [et al.] ; with commentary by Sandra W. Scarr.

Race and intelligence: the fallacies behind the race-IQ controversy.

Edited by Ken Richardson and David Spears. Associate Editor: Martin Richards.

Race and intelligence.

Edited by C. Loring Brace, George R. Gamble, and James T. Bond.

Pre-school environment and intellectual development: a selective survey of the literature, with particular reference to Africa

by Donald Munro.

The settlement of Negroes in Kent County, Ontario: and a study of the mental capacity of their descendants

by H. A. Tanser.

An essay on the treatment and conversion of African slaves in the British sugar colonies

James Ramsey .