Παραπομπή APA

Gupta, R. (1979). Engineering precision metrology. Khanna.

Παραπομπή Chicago Style

Gupta, R.C. Engineering Precision Metrology. New Delhi: Khanna, 1979.

Παραπομπή MLA

Gupta, R.C. Engineering Precision Metrology. Khanna, 1979.