Dyfyniad APA

Pahl, G. .., & Wallace, K. B. Engineering design: A systematic approach (3rd ed.).

Dyfyniad Arddull Chicago

Pahl, G ...[et.al], and Ken Blessing Wallace. Engineering Design: A Systematic Approach. 3rd ed.

Dyfyniad MLA

Pahl, G ...[et.al], and Ken Blessing Wallace. Engineering Design: A Systematic Approach. 3rd ed.

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