GOPALKRISHNAN, P. (1998). THE INTERNATIONAL DICTIONARY OF ABBREVIATION.
Cita Chicago (17th ed.)GOPALKRISHNAN, P. THE INTERNATIONAL DICTIONARY OF ABBREVIATION. 1998.
Cita MLA (9th ed.)GOPALKRISHNAN, P. THE INTERNATIONAL DICTIONARY OF ABBREVIATION. 1998.
Atenció: Aquestes cites poden no estar 100% correctes.