Zakin, H. J., & Zakin, H. J. (1975). French Cistercian grisaille glass: Relationships with Cistercian patterns in other media. The twelfth century.
Chicago Style CitationZakin, Helen Jackson, and Helen Jackson Zakin. "French Cistercian Grisaille Glass: Relationships With Cistercian Patterns in Other Media." The Twelfth Century 1975.
MLA CitationZakin, Helen Jackson, and Helen Jackson Zakin. "French Cistercian Grisaille Glass: Relationships With Cistercian Patterns in Other Media." The Twelfth Century 1975.
Warning: These citations may not always be 100% accurate.