APA استشهاد

Pfaffenberger, B. (1991). PC tools 7 made easy. Osborne McGraw-Hill.

استشهاد بنمط شيكاغو

Pfaffenberger, Bryan. PC Tools 7 Made Easy. Berkeley: Osborne McGraw-Hill, 1991.

MLA استشهاد

Pfaffenberger, Bryan. PC Tools 7 Made Easy. Osborne McGraw-Hill, 1991.