APA (7th ed.) Citation

Campo, B. (1981). Rating systems: Are they counterproductive? Referee, 6(5), 26.

Chicago Style (17th ed.) Citation

Campo, B. "Rating Systems: Are They Counterproductive?" Referee 6, no. 5 (1981): 26.

MLA (9th ed.) Citation

Campo, B. "Rating Systems: Are They Counterproductive?" Referee, vol. 6, no. 5, 1981, p. 26.