Cita APA (7a ed.)

Harper, C. L. (1989). Exploring social change. Prentice Hall.

Cita Chicago Style (17a ed.)

Harper, Charles L. Exploring Social Change. Englewood Cliffs, N.J: Prentice Hall, 1989.

Cita MLA (9a ed.)

Harper, Charles L. Exploring Social Change. Prentice Hall, 1989.