APA (7th ed.) Citation

Berg, J. M. Perspectives and progress in mental retardation. University Park Press.

Chicago Style (17th ed.) Citation

Berg, Joseph M. Perspectives and Progress in Mental Retardation. Baltimore: University Park Press.

MLA (9th ed.) Citation

Berg, Joseph M. Perspectives and Progress in Mental Retardation. University Park Press.

Warning: These citations may not always be 100% accurate.