APA-čujuhus (7. p.)
Chopra, R. K. (2009). Administrative office management. Himalaya Pub. House.
Chicago-čujuhus (17. p.)
Chopra, R. K. Administrative Office Management. Mumbai [India]: Himalaya Pub. House, 2009.
MLA-čujuhus (9. p.)
Chopra, R. K. Administrative Office Management. Himalaya Pub. House, 2009.
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