Clapp, Sarah L. C. (November 1931), "The Beginnings of Subscription Publication in the Seventeenth Century", Modern Philology, Chicago: The University of Chicago Press, 29 (2): 199–224, doi:10.1086/387957, JSTOR433632
jstor.org
Clapp, Sarah L. C. (November 1931), "The Beginnings of Subscription Publication in the Seventeenth Century", Modern Philology, Chicago: The University of Chicago Press, 29 (2): 199–224, doi:10.1086/387957, JSTOR433632