C. Brown, A. Reeve, and M. Wyld, ‘Rubens’ “The Watering Place”’, National Gallery Technical Bulletin,6, 1982, pp. 26-39. http://www.nationalgallery.org.uk/technical-bulletin/brown_reeve_wyld1982.
C. Brown, A. Reeve, and M. Wyld, ‘Rubens’ “The Watering Place”’, National Gallery Technical Bulletin,6, 1982, pp. 26-39. http://www.nationalgallery.org.uk/technical-bulletin/brown_reeve_wyld1982.