APA (7th ed.) Citation

Murray, W., & Aitchison, M. 3b: Boys and girls. Ladybird.

Chicago Style (17th ed.) Citation

Murray, W., and Martin Aitchison. 3b: Boys and Girls. London: Ladybird.

MLA (9th ed.) Citation

Murray, W., and Martin Aitchison. 3b: Boys and Girls. Ladybird.

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