APA

(1972). the almanac of world military. new york: r.r.bowker company،.

Chicago

1972. the almanac of world military. new york: r.r.bowker company،.

Harvard

(1972). the almanac of world military. new york: r.r.bowker company،.

MLA

the almanac of world military. new york: r.r.bowker company،. 1972.