Westling David L. (1986). Introduction to mental retardation. Prentice-Hall.
Chicago Style (17th ed.) CitationWestling David L. Introduction to Mental Retardation. New Jersey: Prentice-Hall, 1986.
MLA (9th ed.) CitationWestling David L. Introduction to Mental Retardation. Prentice-Hall, 1986.
Warning: These citations may not always be 100% accurate.