Gaya APA

Layne, K., Koehler, R. (1993). Automotive engine performance: tuneup, testing, and service (Ed.2). New Jersey: Prentice Hall Carcer dan Technology.

Gaya MLA

Layne, Ken., Koehler, Robert. "Automotive engine performance: tuneup, testing, and service". Ed.2 New Jersey: Prentice Hall Carcer dan Technology, 1993. Text.