APA (7th ed.) Citation

(1993). Language activator: The world's first production dictionary. Longman Group UK Limited.

Chicago Style (17th ed.) Citation

Language Activator: The World's First Production Dictionary. England: Longman Group UK Limited, 1993.

MLA (9th ed.) Citation

Language Activator: The World's First Production Dictionary. Longman Group UK Limited, 1993.

Warning: These citations may not always be 100% accurate.