Cita APA (7a ed.)

Crain, W. C. (2011). Theories of development: Concepts and applications (Sixth edition.). Pearson Education, Inc.

Cita Chicago Style (17a ed.)

Crain, William C. Theories of Development: Concepts and Applications. Sixth edition. Upper Saddle River, NJ: Pearson Education, Inc, 2011.

Cita MLA (9a ed.)

Crain, William C. Theories of Development: Concepts and Applications. Sixth edition. Pearson Education, Inc, 2011.