Citazione Stile APA (7a Edizione)

Guo, X., & Shum, K. P. (2006). Reduced p.p.-rings without identity. Wiley.

Citazione stile Chigago Style (17a edizione)

Guo, Xiaojiang, e K. P. Shum. Reduced P.p.-rings Without Identity. Wiley, 2006.

Citatione MLA (9a ed.)

Guo, Xiaojiang, e K. P. Shum. Reduced P.p.-rings Without Identity. Wiley, 2006.