Παραπομπή APA

Head, R. G., & Rokke, E. J. (1973). American Defence Policy. Johns Hokins university press.

Παραπομπή Chicago Style

Head, Richard G., και Ervin J. Rokke. American Defence Policy. Baltimore: Johns Hokins university press, 1973.

Παραπομπή MLA

Head, Richard G., και Ervin J. Rokke. American Defence Policy. Johns Hokins university press, 1973.