Gaya APA
McWilliams, W, C., Piotrowski, H. (1990).
The World since 1945 : a history of international relations .
London:
Adamantine Press.
Gaya MLA
McWilliams, Wayne, C.., Piotrowski, Harry.
"The World since 1945 : a history of international relations".
London:
Adamantine Press,
1990.
Text.