Samuelson, W. F. (1999). Managerial economics. The Dryden.
Tohutoru Kātū Chicago (17th ed.)Samuelson, William F. Managerial Economics. Fort Worth: The Dryden, 1999.
Tohutoro MLA (9th ed.)Samuelson, William F. Managerial Economics. The Dryden, 1999.
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