Παραπομπή APA

Valkenburgh, V., & Nooger. (2002). Basic synchros and servo mechanism. Sterling.

Παραπομπή Chicago Style

Valkenburgh, Van, και Nooger. Basic Synchros and Servo Mechanism. Mumbai: Sterling, 2002.

Παραπομπή MLA

Valkenburgh, Van, και Nooger. Basic Synchros and Servo Mechanism. Sterling, 2002.