APA (7th ed.) Citation

Lenk, J. D. (1987). John D. Lenk's troubleshooting & repair of audio equipment. National Book Store.

Chicago Style (17th ed.) Citation

Lenk, John D. John D. Lenk's Troubleshooting & Repair of Audio Equipment. Manila: National Book Store, 1987.

MLA (9th ed.) Citation

Lenk, John D. John D. Lenk's Troubleshooting & Repair of Audio Equipment. National Book Store, 1987.