Αναφορές εγγραφής

(1955). Cleaned pictures: An exhibition of pictures from the collection of the Walker Art Gallery, Liverpool, mainly cleaned and restored in the years 1950-1955 by J. Coburn Witherop, with a historical and technical summary, and notes on the condition and treatment of the pictures. Liverpool: Walker Art Center.

Cleaned Pictures: An Exhibition of Pictures From the Collection of the Walker Art Gallery, Liverpool, Mainly Cleaned and Restored in the Years 1950-1955 By J. Coburn Witherop, With a Historical and Technical Summary, and Notes On the Condition and Treatment of the Pictures. Liverpool: Walker Art Center, 1955.