APA استشهاد

Wooldridge, S. (1984). Data processing made simple (2nd ed.). Heinman.

استشهاد بنمط شيكاغو

Wooldridge, Susan. Data Processing Made Simple. 2nd ed. London: Heinman, 1984.

MLA استشهاد

Wooldridge, Susan. Data Processing Made Simple. 2nd ed. Heinman, 1984.