APA (7th ed.) Citation

Seifert, K., Hoffnung, R. J., & Hoffnung, M. (2000). Lifespan development / Kelvin L. Seifert, Robert J. Hoffnung, Michele Hoffnung (2nd ed.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

Seifert, Kelvin, Robert J. Hoffnung, and Michele Hoffnung. Lifespan Development / Kelvin L. Seifert, Robert J. Hoffnung, Michele Hoffnung. 2nd ed. Boston: Houghton Mifflin, 2000.

MLA (9th ed.) Citation

Seifert, Kelvin, et al. Lifespan Development / Kelvin L. Seifert, Robert J. Hoffnung, Michele Hoffnung. 2nd ed. Houghton Mifflin, 2000.

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