APA (7th ed.) Citation

Opie, P., & Opie, I. A. (1947). Lapworth's pocket dictionary. G. Lapworth & Co..

Chicago Style (17th ed.) Citation

Opie, Peter, and Iona Archibald Opie. Lapworth's Pocket Dictionary. London: G. Lapworth & Co., 1947.

MLA (9th ed.) Citation

Opie, Peter, and Iona Archibald Opie. Lapworth's Pocket Dictionary. G. Lapworth & Co., 1947.

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