APA (7th ed.) Citation

Lewis, R., & Pugmire, M. (1993). How to use your dictionary / Roger Lewis and Martin Pugmire. National Extension College.

Chicago Style (17th ed.) Citation

Lewis, Roger, and Martin Pugmire. How to Use Your Dictionary / Roger Lewis and Martin Pugmire. London: National Extension College, 1993.

MLA (9th ed.) Citation

Lewis, Roger, and Martin Pugmire. How to Use Your Dictionary / Roger Lewis and Martin Pugmire. National Extension College, 1993.

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