NTE (Firm). (1985). Technical guide & cross reference.
Cita Chicago (17th ed.)NTE (Firm). Technical Guide & Cross Reference. Bloomfield, N.J. : NTE, 1985.
Cita MLA (9th ed.)NTE (Firm). Technical Guide & Cross Reference. 1985.
Atenció: Aquestes cites poden no estar 100% correctes.