APA (7th ed.) Citation
Marshall, A. (1947). Principles of economics. [s.n.].
Chicago Style (17th ed.) Citation
Marshall, Alfred. Principles of Economics. [S.l.]: [s.n.], 1947.
MLA (9th ed.) Citation
Marshall, Alfred. Principles of Economics. [s.n.], 1947.
Warning: These citations may not always be 100% accurate.