APA (7th ed.) Citation

Lewis, M. M. (1957). How children learn to speak / by M.M. Lewis. Harrap.

Chicago Style (17th ed.) Citation

Lewis, M. M. How Children Learn to Speak / by M.M. Lewis. Harrap, 1957.

MLA (9th ed.) Citation

Lewis, M. M. How Children Learn to Speak / by M.M. Lewis. Harrap, 1957.

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