APA aipamena

Mathsoft, Inc. (1998). Mathcad 3.1: User's guide. MathSoft.

Chicago Style aipamena

Mathsoft, Inc. Mathcad 3.1: User's Guide. Cambridge, Mass., USA: MathSoft, 1998.

MLA aipamena

Mathsoft, Inc. Mathcad 3.1: User's Guide. MathSoft, 1998.