Questar QM-100

First appearance in an advertisement of the QM-100, the QM-2, and the DR-1.

2/3rds Page Vertical

Questar advertisement, <em>Scientific American</em>, April 1989 — Questar advertisement, *Scientific American*, April 1989. Questar Corporation

Scientific American, April 1989, 9.
Scientific American, June 1989, 129.
Scientific American, October 1989, 81.
Scientific American, January 1990, 143.
Scientific American, June 1990, 95.
Scientific American, September 1990, 29.