Marshall, Alfred, 1842-1924. Principles of economics / Alfred Marshall. - 9th (variorum) ed., - London, New York : Macmillan for the Royal Economic Society, 1961. - 2 v. port., diagrs. 25 cm. Bibliographical footnotes. v. 1. Text.--v. 2. Notes. Subjects--Topical Terms: Economics. Dewey Class. No.: 330 / MAP