Keith, L., Roy, A., Morrison, R., & Schade, P. Leonardo da Vinci's Virgin of the Rocks: Treatment, Technique and Display. Leonardo da Vinci : Pupil, Painter and Master.
Čikaški stil citiranja (17. izdanje)Keith, Larry, Ashok Roy, Rachel Morrison, i Peter Schade. "Leonardo Da Vinci's Virgin of the Rocks: Treatment, Technique and Display." Leonardo Da Vinci : Pupil, Painter and Master .
MLA način citiranja (8. izdanje)Keith, Larry, et al. "Leonardo Da Vinci's Virgin of the Rocks: Treatment, Technique and Display." Leonardo Da Vinci : Pupil, Painter and Master, .
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