Gaya APA

KIRKENNDALLL, R, S. (1979). A Global power: America since thr age Roosevelt / Richard S. Kirkendall (2 nd. ed). : Alped A. Knopf.

Gaya MLA

KIRKENNDALLL, Richard, S. "A Global power: America since thr age Roosevelt / Richard S. Kirkendall". 2 nd. ed : Alped A. Knopf, 1979. Referensi.