APA (7th ed.) Citation

Murray, W., & Aitchison, M. (1979). Out in the sun. Ladybird Books.

Chicago Style (17th ed.) Citation

Murray, William, and Martin Aitchison. Out in the Sun. Loughborough [England]: Ladybird Books, 1979.

MLA (9th ed.) Citation

Murray, William, and Martin Aitchison. Out in the Sun. Ladybird Books, 1979.