Cita APA (7a ed.)

Group, L. (1991). Longman active study dictionary of English. Addison Wesley Longman Limited.

Cita Chicago Style (17a ed.)

Group, Longman. Longman Active Study Dictionary of English. Addison Wesley Longman Limited, 1991.

Cita MLA (8a ed.)

Group, Longman. Longman Active Study Dictionary of English. Addison Wesley Longman Limited, 1991.