1. Operation Gadgetman!
by Blackman Malorie 
Price: USD 68.26
Dealer: Biblio, Bonita
Description: hardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. ISBN 0385403372 9780385403375 [US] 

2. Operation Gadgetman!
by Blackman, Malorie 
Price: USD 60.03
Dealer: Alibris, Bonita via Alibris
Description: Transworld Publishers Ltd 1993 hardcover Good Access codes and supplements are not guaranteed with used items. May be an ex-library book.