Parents and children; a first book on the psychology of child development and training.

MLA

Valentine, C. W. Parents and children; a first book on the psychology of child development and training. New York : Philosophical Library, [1955]

APA

Valentine, C. (1955). Parents and children; a first book on the psychology of child development and training. New York : Philosophical Library.

Chicago

Valentine, C. W. Parents and children; a first book on the psychology of child development and training. New York : Philosophical Library, [1955]