VERMES,JEAN C. (1981). SECRETARY'S BOOK OF INSTANT LETTERS. D B TARAPOREVALA SONS & CO.
Cita Chicago (17th ed.)VERMES,JEAN C. SECRETARY'S BOOK OF INSTANT LETTERS. BOMBAY: D B TARAPOREVALA SONS & CO, 1981.
Cita MLA (9th ed.)VERMES,JEAN C. SECRETARY'S BOOK OF INSTANT LETTERS. D B TARAPOREVALA SONS & CO, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.