APA (7th ed.) Citation

Salkind, N. J. (2004). An introduction to theories of human development. SAGE.

Chicago Style (17th ed.) Citation

Salkind, Neil J. An Introduction to Theories of Human Development. Thousand Oaks, California, London: SAGE, 2004.

MLA (9th ed.) Citation

Salkind, Neil J. An Introduction to Theories of Human Development. SAGE, 2004.