Cabrera, M. P. (1982). Maintenance in engineering laboratories. Philippine Engineering Journal.
Cita Chicago (17th ed.)Cabrera, Macario P. "Maintenance in Engineering Laboratories." Philippine Engineering Journal 1982.
Cita MLA (9th ed.)Cabrera, Macario P. "Maintenance in Engineering Laboratories." Philippine Engineering Journal, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.