Cita APA (7th ed.)
(1993). LONGMAN language activator: The world's first production dictionary. Longman.
Cita Chicago (17th ed.)
LONGMAN Language Activator: The World's First Production Dictionary. Great Britain: Longman, 1993.
Cita MLA (9th ed.)
LONGMAN Language Activator: The World's First Production Dictionary. Longman, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.