APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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