Willerman, L. (1979). The psychology of individual and group differences. W H Freeman and Company.
Chicago Edition CitationWillerman, Lee. The Psychology of Individual and Group Differences. San Francisco: W H Freeman and Company, 1979.
MLA Edition CitationWillerman, Lee. The Psychology of Individual and Group Differences. W H Freeman and Company, 1979.
Warning: These citations may not always be 100% accurate.