Cita APA (7a ed.)

CHRISTENSON, R. M. (1982). Challenge and decision: Political issues of our time.--Ed.6. Harper and Row Pub.

Cita Chicago Style (17a ed.)

CHRISTENSON, Reo M. Challenge and Decision: Political Issues of Our Time.--Ed.6. New York: Harper and Row Pub, 1982.

Cita MLA (9a ed.)

CHRISTENSON, Reo M. Challenge and Decision: Political Issues of Our Time.--Ed.6. Harper and Row Pub, 1982.