APA
Asmus R. D., Brown J. & Crane K. (1991). Soviet Foreign Policy and Revolutions of 1989 in Eastern Europe. Santa Monica: RAND.
Chicago
Asmus Ronald D, Brown J.F and Crane Keith. 1991. Soviet Foreign Policy and Revolutions of 1989 in Eastern Europe. Santa Monica: RAND.
Harvard
Asmus R. D., Brown J. and Crane K. (1991). Soviet Foreign Policy and Revolutions of 1989 in Eastern Europe. Santa Monica: RAND.
MLA
Asmus Ronald D, Brown J.F and Crane Keith. Soviet Foreign Policy and Revolutions of 1989 in Eastern Europe. Santa Monica: RAND. 1991.