Bitton , Sena This learning business assignments for pre-vocational courses : teacher's handbook / Sena Bitton , Paul Clark and Stella Gresham - London : Mcgraw-Hill Book Company, c1981 - xi, 216p. : ill. ; 24cm ISBN: 070846286 Subjects--Topical Terms: Learning Business Assignments Dewey Class. No.: 650 / BIT