Philadelphia, University of Pennsylvania Press, 1955
xvii, 233 p. illus. 24 cm
"The A.S.W. Rosenbach Fellowship in Bibliography." "Lectures delivered, the first three as a Rosenbach fellow ... at the University of Pennsylvania, on January 16, 23, 30, 1953, and the fourth at the American Philosophical Society in Philadelphia on March 24."
Bibliography, etc. Note
Includes bibliographical notes