Bibliography Details

World Space Directory. Ed. Donald W. Dean. Washington, D.C.: American Aviation Publications, Inc., Spring 1968. https://archive.org/details/worldspacedirect0006dona/.

The following is a complete listing of all citations using this source:

§ 2.1. Characteristics of Early Questar Telescopes

• Citation No. 1

§ 5.2. Competition Intensifies

• Citation No. 2