APA
Albert D.Helfric, Cooper, . (1990). Modern Electronic Instrumentation and Measurement Techniques. New Delhi: P H I.
Chicago
Albert D.Helfric, Cooper, . 1990. Modern Electronic Instrumentation and Measurement Techniques. New Delhi: P H I.
Harvard
Albert D.Helfric, Cooper, . (1990). Modern Electronic Instrumentation and Measurement Techniques. New Delhi: P H I.
MLA
Albert D.Helfric, Cooper, . Modern Electronic Instrumentation and Measurement Techniques. New Delhi: P H I. 1990.