Text ( visual ) : unmediated Cements and artificial stone : a descriptive catalogue of the specimens in the Sedgwick museum, Cambridge / by the late John Watson ; edited by R.H. Rastall. -- Cambridge : W. Heffer , 1922. -- xii, 131 p. ; 19 cm. -- Includes bibliographical references (p. 122-123) and index. -- (BB17950592) ; https://ci.nii.ac.jp/ncid/BB17950592 Author Heading(s): Watson, John ; Rastall, R. H. (Robert Heron)