APA Style

Lipsey, Richard G., 1928. (1980). An introduction to positive economics / Richard G. Lipsey (5th ed.). London: Weidenfeld & Nicolson Ltd..

Chicago Style

Lipsey, Richard G., 1928. An introduction to positive economics / Richard G. Lipsey. 5th ed. London: Weidenfeld & Nicolson Ltd., 1980. Text.

MLA Style

Lipsey, Richard G., 1928. An introduction to positive economics / Richard G. Lipsey. 5th ed. London: Weidenfeld & Nicolson Ltd., 1980. Text.

Turabian Style

Lipsey, Richard G., 1928. An introduction to positive economics / Richard G. Lipsey. 5th ed. London: Weidenfeld & Nicolson Ltd., 1980. Print.