Sapsford, R. (1998). Theory and social psychology. SAGE Publications in association with the Open University.
Citace podle Chicago (17th ed.)Sapsford, Roger. Theory and Social Psychology. London: SAGE Publications in association with the Open University, 1998.
Citace podle MLA (9th ed.)Sapsford, Roger. Theory and Social Psychology. SAGE Publications in association with the Open University, 1998.
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