APA (7th ed.) Citation

Hughes, R. J. (1980). Directives and questions in the language of a three and a half year old child: Two studies compared. : University of Leeds.

Chicago Style (17th ed.) Citation

Hughes, R. J. Directives and Questions in the Language of a Three and a Half Year Old Child: Two Studies Compared. Leeds, Eng: : University of Leeds, 1980.

MLA (8th ed.) Citation

Hughes, R. J. Directives and Questions in the Language of a Three and a Half Year Old Child: Two Studies Compared. : University of Leeds, 1980.