Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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