Boulding, K. E. (1962). Conflict and defense: A general theory. Harper torchbooks.
Citazione stile Chigago Style (17a edizione)Boulding, Kenneth E. Conflict and Defense: A General Theory. New York: Harper torchbooks, 1962.
Citatione MLA (9a ed.)Boulding, Kenneth E. Conflict and Defense: A General Theory. Harper torchbooks, 1962.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.