Boulding, K. E. (1962). Conflict and defense: A general theory. Harper torchbooks.
Dyfyniad Arddull ChicagoBoulding, Kenneth E. Conflict and Defense: A General Theory. New York: Harper torchbooks, 1962.
Dyfyniad MLABoulding, Kenneth E. Conflict and Defense: A General Theory. Harper torchbooks, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.