APA Format
Clack, George; . (1981). Outline of the U.S Economy / George Clack . Amerika : Dep Of state office of international
MLA Format
Clack, George; . Outline of the U.S Economy / George Clack . Amerika : Dep Of state office of international, 1981
Chicago Format
Clack, George; . Outline of the U.S Economy / George Clack . Amerika : Dep Of state office of international, 1981
Australian/Harvard Format
Clack, George; . 1981. Outline of the U.S Economy / George Clack . Dep Of state office of international Amerika