APA (7th ed.) Citation

Murray, W., Croby, J., & Russell, C. Let's play. Ladybird books Ltd.

Chicago Style (17th ed.) Citation

Murray, William, Jill Croby, and Chris Russell. Let's Play. London: Ladybird books Ltd.

MLA (9th ed.) Citation

Murray, William, et al. Let's Play. Ladybird books Ltd.