Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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