Gilhooly, K. J. (1982). Thinking: Directed, undirected and creative. Academic Press.
Cita Chicago Style (17a ed.)Gilhooly, Kenneth J. Thinking: Directed, Undirected and Creative. London [i pozostałe]: Academic Press, 1982.
Cita MLA (9a ed.)Gilhooly, Kenneth J. Thinking: Directed, Undirected and Creative. Academic Press, 1982.
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