APA način citiranja (7. izdanje)
Kettley, N. C. (2010). Theory building in educational research. Continuum International Pub. Group.
Čikaški stil citiranja (17. izdanje)
Kettley, Nigel C. Theory Building in Educational Research. New York: Continuum International Pub. Group, 2010.
MLA način citiranja (9. izdanje)
Kettley, Nigel C. Theory Building in Educational Research. Continuum International Pub. Group, 2010.
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