Carvill, J. (1980). The student engineer's companion. Butterworths.
Cita Chicago (17th ed.)Carvill, J. The Student Engineer's Companion. Londres: Butterworths, 1980.
Cita MLA (9th ed.)Carvill, J. The Student Engineer's Companion. Butterworths, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.