Cita APA (7th ed.)

Boulding, K. E. (1963). Conflict and defense: A general theory. Harper & Row.

Cita Chicago (17th ed.)

Boulding, Kenneth E. Conflict and Defense: A General Theory. New York, USA: Harper & Row, 1963.

Cita MLA (9th ed.)

Boulding, Kenneth E. Conflict and Defense: A General Theory. Harper & Row, 1963.