APA-čujuhus (7. p.)
De Vos, A. S. (2011). Research at grass roots: For the social sciences and human services professions (4th ed.). Van Schaik.
Chicago-čujuhus (17. p.)
De Vos, A. S. Research at Grass Roots: For the Social Sciences and Human Services Professions. 4th ed. Pretoria: Van Schaik, 2011.
MLA-čujuhus (9. p.)
De Vos, A. S. Research at Grass Roots: For the Social Sciences and Human Services Professions. 4th ed. Van Schaik, 2011.
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