APA (7th ed.) Citation

Pennington, J., & Sayers, R. S. (1963). Economic writings. London School of Economics and Political Science.

Chicago Style (17th ed.) Citation

Pennington, James, and R. S. Sayers. Economic Writings. London: London School of Economics and Political Science, 1963.

MLA (8th ed.) Citation

Pennington, James, and R. S. Sayers. Economic Writings. London School of Economics and Political Science, 1963.