APA

Williamson S. R., . (1969). The politics of grand strategy. Cambridge, Mass: Harvard University Press.

Chicago

Williamson Samuel R, . 1969. The politics of grand strategy. Cambridge, Mass: Harvard University Press.

Harvard

Williamson S. R., . (1969). The politics of grand strategy. Cambridge, Mass: Harvard University Press.

MLA

Williamson Samuel R, . The politics of grand strategy. Cambridge, Mass: Harvard University Press. 1969.