Parker, B. R. (1984). Concepts of the cosmos: An introduction to astronomy. Harcourt Brace Jovanovich.
Čikaški stil citiranjaParker, Barry R. Concepts of the Cosmos: An Introduction to Astronomy. San Diego: Harcourt Brace Jovanovich, 1984.
MLA način citiranjaParker, Barry R. Concepts of the Cosmos: An Introduction to Astronomy. Harcourt Brace Jovanovich, 1984.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.