APA
(1968). Indian Standard: Reference Zero for the Calibration of Pure Tone Audiometers. : Indian Standard Institution.
Chicago
1968. Indian Standard: Reference Zero for the Calibration of Pure Tone Audiometers. : Indian Standard Institution.
Harvard
(1968). Indian Standard: Reference Zero for the Calibration of Pure Tone Audiometers. : Indian Standard Institution.
MLA
Indian Standard: Reference Zero for the Calibration of Pure Tone Audiometers. : Indian Standard Institution. 1968.
