APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.