APA (7 ম সংস্করণ) উদ্ধৃতি

Christenson, R. M. (1976). Challenge and decision: Political issues of our time. Harper and Row Pub.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Christenson, Reo M. Challenge and Decision: Political Issues of Our Time. Harper and Row Pub, 1976.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Christenson, Reo M. Challenge and Decision: Political Issues of Our Time. Harper and Row Pub, 1976.