APA
Hadfield J., . (1967). Childhood and adolescence. Harmondsworth: Penguin Books.
Chicago
Hadfield J.A, . 1967. Childhood and adolescence. Harmondsworth: Penguin Books.
Harvard
Hadfield J., . (1967). Childhood and adolescence. Harmondsworth: Penguin Books.
MLA
Hadfield J.A, . Childhood and adolescence. Harmondsworth: Penguin Books. 1967.
