Gaya APA

MathSoft, I. (1999). Mathcad User’s Guide Mathcad 2000 Professional Mathcad 2000 Standard . Cambridge: MathSoft, Inc.

Gaya MLA

MathSoft, Inc. "Mathcad User’s Guide Mathcad 2000 Professional Mathcad 2000 Standard". Cambridge: MathSoft, Inc, 1999. Text.