APA (7th ed.) Citation

(1971). The Reader's Digest Great Encyclopaedic dictionary: In three volumes (Second edition (seventh impression), August 1971.). The Reader's Digest Association.

Chicago Style (17th ed.) Citation

The Reader's Digest Great Encyclopaedic Dictionary: In Three Volumes. Second edition (seventh impression), August 1971. London: The Reader's Digest Association, 1971.

MLA (9th ed.) Citation

The Reader's Digest Great Encyclopaedic Dictionary: In Three Volumes. Second edition (seventh impression), August 1971. The Reader's Digest Association, 1971.