APA (7th ed.) Citation

Forbush, D. R., Forbush, D. F., Lipsey, R. G., & Steiner, P. O. (1975). Study guide and problems to accompany Lipsey & Steiner Economics, 4th ed. Harper & Row.

Chicago Style (17th ed.) Citation

Forbush, Dascomb R., Dorothy F. Forbush, Richard G. Lipsey, and Peter Otto Steiner. Study Guide and Problems to Accompany Lipsey & Steiner Economics, 4th Ed. New York: Harper & Row, 1975.

MLA (9th ed.) Citation

Forbush, Dascomb R., et al. Study Guide and Problems to Accompany Lipsey & Steiner Economics, 4th Ed. Harper & Row, 1975.