TY - BOOK AU - LEADBETTER, CHRIS.[ET-AL] TI - CAMBRIDGE IGCSE COMPUTER STUDEIS COURSEBOOK SN - 9780521170635 AV - QA76.L378 2011 PY - 2011/// CY - CAMBRIDGE, U.K PB - CAMBRIDGE UNIVERSITY PRESS KW - INFORMATION STUDES N1 - INDEXES ER -