APA

Hadfield J. A., . (1970). Childhood and adolescence. Baltimore, Md: Penguin Books.

Chicago

Hadfield James Arthur, . 1970. Childhood and adolescence. Baltimore, Md: Penguin Books.

Harvard

Hadfield J. A., . (1970). Childhood and adolescence. Baltimore, Md: Penguin Books.

MLA

Hadfield James Arthur, . Childhood and adolescence. Baltimore, Md: Penguin Books. 1970.