APA-čujuhus (7. p.)
Cagan, J., & Vogel, C. M. Creating Breaththrough Products: Innovation from Product Planning to Program Approval. Prentice-Hall.
Chicago-čujuhus (17. p.)
Cagan, Jonathan, juo Craig M. Vogel. Creating Breaththrough Products: Innovation from Product Planning to Program Approval. Upper Saddle River, EUA: Prentice-Hall.
MLA-čujuhus (9. p.)
Cagan, Jonathan, juo Craig M. Vogel. Creating Breaththrough Products: Innovation from Product Planning to Program Approval. Prentice-Hall.
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