Mann, Richard A. Essentials of business law and the legal environment / Richard A. Mann, Barry S. Roberts - Nineth edition - 1 v. (various pagings) : illustration, chiefly col.) ; 27 cm. + Instructor's manual. Includes index ISBN: 0324303955 RM591.00 0324375212 (Instructor's manual) Subjects--Topical Terms: Commercial law--United StatesBusiness law--United StatesTrade regulation--United States