APA (7th ed.) Citation

Murray, W., & Aitchison, M. (1965). More sounds to say. Ladybird Books.

Chicago Style (17th ed.) Citation

Murray, William, and Martin Aitchison. More Sounds to Say. Loughborough [England]: Ladybird Books, 1965.

MLA (9th ed.) Citation

Murray, William, and Martin Aitchison. More Sounds to Say. Ladybird Books, 1965.