Autor: David Seymour, 3 titluri

New Inside Out Beginner Teacher's Book and Test CD

David Seymour,Sue Kay,Vaughan Jones

700 Classroom Activities New Edition Digital Methodology Book Pack

David Seymour,Maria Popova

Systems Engineering Principles and Practice

Alexander Kossiakoff,Steven M. Biemer,Samuel J. Seymour,David A. Flanigan