MLA

De Wild, Angenitus Martinus, and F.E.C Scheffer. The Scientific Examination of Pictures : An Investigation of the Pigments Used by the Dutch and Flemish Masters From the Brothers Van Eyck to the Middle of the 19th Century. London: G. Bell and Sons, 1929.

APA

De Wild, A. Martinus, & Scheffer, F. (1929). The Scientific Examination of Pictures : An investigation of the pigments used by the Dutch and Flemish Masters from the Brothers Van Eyck to the Middle of the 19th century. London: G. Bell and Sons.

Chicago

De Wild, Angenitus Martinus, and F.E.C Scheffer. The Scientific Examination of Pictures: An Investigation of the Pigments Used by the Dutch and Flemish Masters From the Brothers Van Eyck to the Middle of the 19th Century. London: G. Bell and Sons, 1929.