Zwaenepoel, P. P. (1970). Readings on values and value systems in educational systems. Department of Development Education, Graduate School of Arts and Sciences, University of Santo Tomas.
Chicago-referens (17:e uppl.)Zwaenepoel, Paul P. Readings on Values and Value Systems in Educational Systems. [Manila]: Department of Development Education, Graduate School of Arts and Sciences, University of Santo Tomas, 1970.
MLA-referens (9:e uppl.)Zwaenepoel, Paul P. Readings on Values and Value Systems in Educational Systems. Department of Development Education, Graduate School of Arts and Sciences, University of Santo Tomas, 1970.
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