Παραπομπή APA

Daniels, A., & Yeates, D. (1971). Basic Training in system analysis (2nd ed.). Pitman.

Παραπομπή Chicago Style

Daniels, Alan, και Donald Yeates. Basic Training in System Analysis. 2nd ed. Toronoto: Pitman, 1971.

Παραπομπή MLA

Daniels, Alan, και Donald Yeates. Basic Training in System Analysis. 2nd ed. Pitman, 1971.