1. 01. English Non Fiction Big bang / by Couper, Heather. Publication: New York : DK Pub., 1996 . p. cm. , Includes index. Date:1996 Availability: Copies available: (1), Actions:
2. 09.  Reference The Firefly space encyclopedia / by Couper, Heather. Publication: Toronto : Firefly Books, 1999 . 304 p. : 29 cm. Date:1999 Availability: Copies available: (1), Actions: