Lartey, G. W. (1977). The fourth dimension: The argument against the theory of evolutionary stages of social development. University of Lund.
Chicago-referens (17:e uppl.)Lartey, George Wilhelm. The Fourth Dimension: The Argument Against the Theory of Evolutionary Stages of Social Development. [Lund]: University of Lund, 1977.
MLA-referens (8:e uppl.)Lartey, George Wilhelm. The Fourth Dimension: The Argument Against the Theory of Evolutionary Stages of Social Development. University of Lund, 1977.
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