APA (7th ed.) Citation

Lumsden, K., Attiyeh, R., & Leland Bach, G. (1966). Microeconomics a programmed book. Prentice Hall.

Chicago Style (17th ed.) Citation

Lumsden, Keith, Richard Attiyeh, and George Leland Bach. Microeconomics a Programmed Book. Upper Saddle River: Prentice Hall, 1966.

MLA (9th ed.) Citation

Lumsden, Keith, et al. Microeconomics a Programmed Book. Prentice Hall, 1966.