Gaya APA
Koppes, S, N. (2004).
Killer Rocks From Outer Space : Asteroids, comets, and Meteorites .
Minneapolis:
Twenty First Century Books.
Gaya MLA
Koppes, Steven, N.
"Killer Rocks From Outer Space : Asteroids, comets, and Meteorites".
Minneapolis:
Twenty First Century Books,
2004.
Text.