Keith, L., Roy, A., & Morrison, R. (2011). Leonardo da Vinci's "Virgin of the Rocks": Technique and the context of restoration.
Chicago Style (17th ed.) CitationKeith, Larry, Ashok Roy, and Rachel Morrison. Leonardo Da Vinci's "Virgin of the Rocks": Technique and the Context of Restoration. 2011.
MLA (9th ed.) CitationKeith, Larry, et al. Leonardo Da Vinci's "Virgin of the Rocks": Technique and the Context of Restoration. 2011.
Warning: These citations may not always be 100% accurate.