Higgins, L. R. (1988). Maintainance Engineering Handbook. McGrawhill.
Cita Chicago (17th ed.)Higgins, L R. Maintainance Engineering Handbook. New York: McGrawhill, 1988.
Cita MLA (9th ed.)Higgins, L R. Maintainance Engineering Handbook. McGrawhill, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.