APA-viite (7. p.)

Schaaf, F. (1991). Seeing the solar system: Telescopic projects, activities, and explorations in astronomy. Wiley.

Chicago-viite (17. p.)

Schaaf, Fred. Seeing the Solar System: Telescopic Projects, Activities, and Explorations in Astronomy. New York: Wiley, 1991.

MLA-viite (8. p.)

Schaaf, Fred. Seeing the Solar System: Telescopic Projects, Activities, and Explorations in Astronomy. Wiley, 1991.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.