Holt,David. (1998). Entereprenceur Ship. Prentice-Hall of India Pvt. Ltd.
Chicago-čujuhus (17. p.)Holt,David. Entereprenceur Ship. Prentice-Hall of India Pvt. Ltd, 1998.
MLA-čujuhus (9. p.)Holt,David. Entereprenceur Ship. Prentice-Hall of India Pvt. Ltd, 1998.
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