APA (7th ed.) Citation

Lockwood, W. B. (1965). An informal history of the German language... / by W.B. Lockwood. Heffer.

Chicago Style (17th ed.) Citation

Lockwood, W. B. An Informal History of the German Language... / by W.B. Lockwood. Heffer, 1965.

MLA (9th ed.) Citation

Lockwood, W. B. An Informal History of the German Language... / by W.B. Lockwood. Heffer, 1965.

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