Clapp, Sarah L. C., The Beginnings of Subscription Publication in the Seventeenth Century, Modern Philology (Chicago: The University of Chicago Press), November 1931, 29 (2): 199–224, JSTOR 433632, doi:10.1086/387957
jstor.org
Clapp, Sarah L. C., The Beginnings of Subscription Publication in the Seventeenth Century, Modern Philology (Chicago: The University of Chicago Press), November 1931, 29 (2): 199–224, JSTOR 433632, doi:10.1086/387957