Gaya APA

Gormly, A, V., Brodzinksy, D, M. (1993). Lifespan human development (4th ed). New York: Prentice Hall.

Gaya MLA

Gormly, Anne, V.., Brodzinksy, David, M.. "Lifespan human development". 4th ed New York: Prentice Hall, 1993. Text.