APA-čujuhus (7. p.)

McFarland Keith R. (2008). The Breakthrough Company. Crown Publishers Group,Randam House Inc.

Chicago-čujuhus (17. p.)

McFarland Keith R. The Breakthrough Company. USA: Crown Publishers Group,Randam House Inc, 2008.

MLA-čujuhus (9. p.)

McFarland Keith R. The Breakthrough Company. Crown Publishers Group,Randam House Inc, 2008.

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