Dyfyniad APA

Koncelik, J. A., & Reeder, K. (2008). Conceptual drawing: Freehand drawing & design visualization for design professions. Delmar Cengage Learning.

Dyfyniad Arddull Chicago

Koncelik, Joseph A., and Kevin Reeder. Conceptual Drawing: Freehand Drawing & Design Visualization for Design Professions. New York: Delmar Cengage Learning, 2008.

Dyfyniad MLA

Koncelik, Joseph A., and Kevin Reeder. Conceptual Drawing: Freehand Drawing & Design Visualization for Design Professions. Delmar Cengage Learning, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.