APA (7th ed.) Citation

Lim, Chia, & Lee. (1971). Elements of economic theory. Oxford University Press.

Chicago Style (17th ed.) Citation

Lim, Chia, and Lee. Elements of Economic Theory. Singapore: Oxford University Press, 1971.

MLA (8th ed.) Citation

Lim, et al. Elements of Economic Theory. Oxford University Press, 1971.