1. 01. English Non Fiction Thomas A. Edison : how electricity was harnessed for domestic use by one of the great inventors of all time / by Sproule, Anna. Publication: Toronto : Irwin Pub., 1990 . 64 p. : 22 cm. Date:1990 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction James Watt : the story of the development of steam engines and how they created our industrial society / by Sproule, Anna. Publication: Toronto : Irwin Pub., 1992 . 64 p. : , Includes index. 22 cm. Date:1992 Availability: Copies available: (1), Actions: