Cita APA (7a ed.)

Koppes, S. N. (2004). Killer rocks from outer space: Asteroids, comets, and meteorites. Lerner Publications.

Cita Chicago Style (17a ed.)

Koppes, Steven N. Killer Rocks from Outer Space: Asteroids, Comets, and Meteorites. Minneapolis, MN: Lerner Publications, 2004.

Cita MLA (8a ed.)

Koppes, Steven N. Killer Rocks from Outer Space: Asteroids, Comets, and Meteorites. Lerner Publications, 2004.

Precaución: Estas citas no son 100% exactas.