Cita APA

Erickson, J. (1991). Target earth!: Asteroid collisions past and future. Tab Books.

Citación estilo Chicago

Erickson, Jon. Target Earth!: Asteroid Collisions Past and Future. Palo Alto: Tab Books, 1991.

Cita MLA

Erickson, Jon. Target Earth!: Asteroid Collisions Past and Future. Tab Books, 1991.

Warning: These citations may not always be 100% accurate.