Thomas, J. S., Learner (2007). "Modern Paints: Uncovering the Choices". In Learner, Thomas J. S.; Smithen, Patricia; Krueger, Jay W.; Schilling, Michael R. (eds.). Modern Paints Uncovered(PDF). Los Angeles: Getty Conservation Institute. p. 6. ISBN9780892369065. Archived(PDF) from the original on 2022-10-09.
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Thomas, J. S., Learner (2007). "Modern Paints: Uncovering the Choices". In Learner, Thomas J. S.; Smithen, Patricia; Krueger, Jay W.; Schilling, Michael R. (eds.). Modern Paints Uncovered(PDF). Los Angeles: Getty Conservation Institute. p. 6. ISBN9780892369065. Archived(PDF) from the original on 2022-10-09.