- & FROST, S. [. (1971). Masterworks of philosophy vol. 1. McGraw-Hill Bo. Co.
Dyfyniad Arddull Chicago- and S.E. [Ed.] FROST. Masterworks of Philosophy Vol. 1. New York: McGraw-Hill Bo. Co, 1971.
Dyfyniad MLA- and S.E. [Ed.] FROST. Masterworks of Philosophy Vol. 1. McGraw-Hill Bo. Co, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.