1. 01. English Non Fiction Inventors / by Hacker, Carlotta, Publication: Calgary : Weigl, 2000 . 48 p. : 26 cm. Date:2000 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction Scientists / by Hacker, Carlotta, Publication: Calgary : Weigl, 2000 . 48 p. : 27 cm. Date:2000 Availability: Copies available: (1), Actions:
3. 01. English Non Fiction The kids book of Canadian history / by Hacker, Carlotta, Publication: Toronto : Kids Can Press, 2002 . 72 p. : , Includes index. 31 cm. Date:2002 Availability: Copies available: (2), Actions:
4. 01. English Non Fiction Scientists / by Hacker, Carlotta, Publication: Calgary : Weigl, 2000 . 48 p. : 27 cm. Date:2000 Availability: Copies available: (1), Actions: