APA (7th ed.) Citation

Powling, S., & Christensen, K. (1990). Your child. Harrap Publishing.

Chicago Style (17th ed.) Citation

Powling, Suzy, and Keren Christensen. Your Child. London: Harrap Publishing, 1990.

MLA (9th ed.) Citation

Powling, Suzy, and Keren Christensen. Your Child. Harrap Publishing, 1990.

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