1. 01. English Non Fiction Accidental Discoveries : from laughing gas to dynamite / by Verstraete, Larry. Publication: Markham, Ont. : Scholastic Canada, 1999 . 134 p. : , Previously published under title: The serendipity effect. 23 cm. Date:1999 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction Whose bright idea was it? : true stories of invention / by Verstraete, Larry. Publication: Toronto, Ont. : Scholastic Canada, 1997 . 153 p. : 23 cm. Date:1997 Availability: Copies available: (1), Actions: