APA

Grey L., . (1972). Discipline without tyranny: child training during the first five years. New York: Hawthorn Books.

Chicago

Grey Loren, . 1972. Discipline without tyranny: child training during the first five years. New York: Hawthorn Books.

Harvard

Grey L., . (1972). Discipline without tyranny: child training during the first five years. New York: Hawthorn Books.

MLA

Grey Loren, . Discipline without tyranny: child training during the first five years. New York: Hawthorn Books. 1972.