Pikas, A. 1., & Tomkinson, N. (1966). Abstraction and concept formation: An interpretative investigation into a group of psychological frames of reference. Cambridge, Massachusetts: Harvard University Press.
Chicago Style CitationPikas, Anatol 1928-, and Neil Tomkinson. Abstraction and Concept Formation: An Interpretative Investigation Into a Group of Psychological Frames of Reference. Cambridge, Massachusetts: Harvard University Press, 1966.
MLA CitationPikas, Anatol 1928-, and Neil Tomkinson. Abstraction and Concept Formation: An Interpretative Investigation Into a Group of Psychological Frames of Reference. Cambridge, Massachusetts: Harvard University Press, 1966.
Warning: These citations may not always be 100% accurate.