APA aipamena

Wittkower, R. (1977). Sculpture: Processes and principles. Harper & Row, Publishers, Inc.

Chicago Style aipamena

Wittkower, Rudolf. Sculpture: Processes and Principles. New York, N.Y: Harper & Row, Publishers, Inc, 1977.

MLA aipamena

Wittkower, Rudolf. Sculpture: Processes and Principles. Harper & Row, Publishers, Inc, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.