Landauer, C. (1964). Contemporary economic systems: A comparative analysis. Lippincott.
Chicago (17e ed.) BronvermeldingLandauer, Carl. Contemporary Economic Systems: A Comparative Analysis. Philadelphia: Lippincott, 1964.
MLA (9e ed.) BronvermeldingLandauer, Carl. Contemporary Economic Systems: A Comparative Analysis. Lippincott, 1964.