APA (7th ed.) Citation

Sirett, D., & Battuz, C. (2015). First words. Dorling Kindersley Limited.

Chicago Style (17th ed.) Citation

Sirett, Dawn, and Christine Battuz. First Words. London: Dorling Kindersley Limited, 2015.

MLA (9th ed.) Citation

Sirett, Dawn, and Christine Battuz. First Words. Dorling Kindersley Limited, 2015.