[edited by] James J. O'Brien, Robert G. Zilly

McGraw-Hill c1991 2nd ed

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by Robert G. Zilly and Verner M. Meyers

U.S. Small Business Administration , For sale by the Supt. of Docs., U.S. G.P.O. 1979 Small business management series no. 40

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edited by Robert G. Zilly

Van Nostrand Reinhold [1975]

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edited by Robert G. Zilly

Van Nostrand Reinhold c1975

Pt. 1 , Pt. 2

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Co-editors: James J. O'Brien, Robert G. Zilly. Consulting editor: Thomas A. Graham

McGraw-Hill [1971]

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