APA

Paterson T. G., Clifford J. G. & Hagan K. J. (1977). American foreign policy: a history. Lexington, Mass: D. C. Heath.

Chicago

Paterson Thomas G, Clifford J Garry and Hagan Kenneth J. 1977. American foreign policy: a history. Lexington, Mass: D. C. Heath.

Harvard

Paterson T. G., Clifford J. G. and Hagan K. J. (1977). American foreign policy: a history. Lexington, Mass: D. C. Heath.

MLA

Paterson Thomas G, Clifford J Garry and Hagan Kenneth J. American foreign policy: a history. Lexington, Mass: D. C. Heath. 1977.