@unpublished{Peircend,
author = "Charles S. Peirce",
title = "{Cardinal and Ordinal Number [R]. MS [R] 42}",
year = nd,
abstract = "{Robin Catalogue:
A. MS., n.p., n.d., 10 pp.
}",
keywords = "Number, Cardinal Number, Ordinal Number, Dyadic Relation",
language = "English",
note = "From the Commens Bibliography | \url{http://www.commens.org/bibliography/manuscript/peirce-charles-s-nd-cardinal-and-ordinal-number-r-ms-r-42}"
}
