APA-čujuhus (7. p.)

Helfrick, A. D. &. C. W. D. (2023). Modern Electronic Instrumentation And Measurement Techniques (15th.). Pearson.

Chicago-čujuhus (17. p.)

Helfrick, Albert D. & Cooper William D. Modern Electronic Instrumentation And Measurement Techniques. 15th. New Delhi: Pearson, 2023.

MLA-čujuhus (9. p.)

Helfrick, Albert D. & Cooper William D. Modern Electronic Instrumentation And Measurement Techniques. 15th. Pearson, 2023.

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