American Psychological Association 6th edition

Wolfram, S. [ca. 1991]. Mathematica : a system for doing mathematics by computer (2. ed.) [Book]. Redwood City, Calif. [u.a.]: Addison-Wesley.

ISO-690 (author-date, English)

WOLFRAM, Stephen, 1991. Mathematica : a system for doing mathematics by computer. 2. ed. Redwood City, Calif. [u.a.]: Addison-Wesley. ISBN 0201515075.

Modern Language Association 9th edition

Wolfram, S. Mathematica : a system for doing mathematics by computer. 2. ed., book, Addison-Wesley, 1991.

Mohr Siebeck - Recht (Deutsch - Österreich)

Wolfram, Stephen: Mathematica : a system for doing mathematics by computer, 2. ed. ed. Redwood City, Calif. [u.a.] 1991.

Emerald - Harvard

Wolfram, S. (1991), Mathematica : a system for doing mathematics by computer, 2. ed., Vol. , Addison-Wesley, Redwood City, Calif. [u.a.].

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