APA (7th ed.) Citation

Leach, P. Babyhood: Infant development from birth to two years. Penguin Books.

Chicago Style (17th ed.) Citation

Leach, Penelope. Babyhood: Infant Development from Birth to Two Years. Harmondsworth: Penguin Books.

MLA (9th ed.) Citation

Leach, Penelope. Babyhood: Infant Development from Birth to Two Years. Penguin Books.

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