The Complete Problem Solver Autor John R. Hayes mar 1989 Paperback Preț: 549.16 lei 646.08 lei 6-8 săpt. -15%
Reading Empirical Research Studies: The Rhetoric of Research Editat de John R. Hayes et al. mai 1992 Paperback Preț: 491.12 lei 516.97 lei 6-8 săpt. -5%