Παραπομπή APA

Verma, S. N. (1979). Automatic control systems. Khanna Publishers.

Παραπομπή Chicago Style

Verma, S. N. Automatic Control Systems. Delhi: Khanna Publishers, 1979.

Παραπομπή MLA

Verma, S. N. Automatic Control Systems. Khanna Publishers, 1979.