KANAWATY GEORGE. (2011). INTRODUCTION TO WORK STUDY (4th.). UNIVERSAL PUBLISHING CORPORATION.
Chicago-čujuhus (17. p.)KANAWATY GEORGE. INTRODUCTION TO WORK STUDY. 4th. MUMBAI: UNIVERSAL PUBLISHING CORPORATION, 2011.
MLA-čujuhus (9. p.)KANAWATY GEORGE. INTRODUCTION TO WORK STUDY. 4th. UNIVERSAL PUBLISHING CORPORATION, 2011.
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