APA (7th ed.) Citation

Spencer, M. H., & Siegelman, L. (1959). Managerial economics: Decision making and forward planning. Richard D. Irwin.

Chicago Style (17th ed.) Citation

Spencer, Milton H., and Louis Siegelman. Managerial Economics: Decision Making and Forward Planning. Homewood: Richard D. Irwin, 1959.

MLA (9th ed.) Citation

Spencer, Milton H., and Louis Siegelman. Managerial Economics: Decision Making and Forward Planning. Richard D. Irwin, 1959.