APA

(1994). Once in a Thousand Lifetimes. A guide to the collision of Comet Shoemaker-Levy 9 Jupiter. : .

Chicago

1994. Once in a Thousand Lifetimes. A guide to the collision of Comet Shoemaker-Levy 9 Jupiter. : .

Harvard

(1994). Once in a Thousand Lifetimes. A guide to the collision of Comet Shoemaker-Levy 9 Jupiter. : .

MLA

Once in a Thousand Lifetimes. A guide to the collision of Comet Shoemaker-Levy 9 Jupiter. : . 1994.