@unpublished{Peircend,
author = "Charles S. Peirce",
title = "{The Axioms of Number. MS [R] 41}",
year = nd,
abstract = "{Robin Catalogue:
TS., n.p., n.d., 2 pp.
}",
keywords = "Number",
language = "English",
note = "From the Commens Bibliography | \url{http://www.commens.org/bibliography/manuscript/peirce-charles-s-nd-axioms-number-ms-r-41}"
}