APA (7th ed.) Citation

Singer, Z., & Turner, H. (2011). First aid friends. Usborne Publishing Ltd..

Chicago Style (17th ed.) Citation

Singer, Zuzu, and Helen Turner. First Aid Friends. London: Usborne Publishing Ltd., 2011.

MLA (9th ed.) Citation

Singer, Zuzu, and Helen Turner. First Aid Friends. Usborne Publishing Ltd., 2011.