Παραπομπή σε μορφή APA (7η εκδ.)

GOPAL M. (2007). CONTROL SYSTEMS: PRINCIPLES AND DESIGN (2ND ED.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.

Παραπομπή σε μορφή Chicago (17η εκδ.)

GOPAL M. CONTROL SYSTEMS: PRINCIPLES AND DESIGN. 2ND ED. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

GOPAL M. CONTROL SYSTEMS: PRINCIPLES AND DESIGN. 2ND ED. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2007.