APA aipamena

Duff, J. M. (2009). Sketching for engineering design visualization. Cengage Learning.

Chicago Style aipamena

Duff, Jon M. Sketching for Engineering Design Visualization. Clifton Park, N.Y: Cengage Learning, 2009.

MLA aipamena

Duff, Jon M. Sketching for Engineering Design Visualization. Cengage Learning, 2009.