Cita APA (7th ed.)
CLARK, K. (1969). Civilisation A personal view. Harper & Row Publishers.
Cita Chicago (17th ed.)
CLARK, Kenneth. Civilisation A Personal View. New York: Harper & Row Publishers, 1969.
Cita MLA (9th ed.)
CLARK, Kenneth. Civilisation A Personal View. Harper & Row Publishers, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.