APA (7th ed.) Citation

Ferber, R. (1985). Solve your child's sleep problems. Dorling Kindersley.

Chicago Style (17th ed.) Citation

Ferber, Richard. Solve Your Child's Sleep Problems. London: Dorling Kindersley, 1985.

MLA (9th ed.) Citation

Ferber, Richard. Solve Your Child's Sleep Problems. Dorling Kindersley, 1985.