APA (7th ed.) Citation

Slive, S. (1965). An unpublished "Head of Christ" by Rembrandt.

Chicago Style (17th ed.) Citation

Slive, Seymour. An Unpublished "Head of Christ" by Rembrandt. 1965.

MLA (9th ed.) Citation

Slive, Seymour. An Unpublished "Head of Christ" by Rembrandt. 1965.

Warning: These citations may not always be 100% accurate.