O'Brien, E., & Vaughan-Lee, M. (2002). The 2-generator restricted burnside group of exponent 7.
Cita Chicago (17th ed.)O'Brien, E., i M. Vaughan-Lee. The 2-generator Restricted Burnside Group of Exponent 7. 2002.
Cita MLA (9th ed.)O'Brien, E., i M. Vaughan-Lee. The 2-generator Restricted Burnside Group of Exponent 7. 2002.
Atenció: Aquestes cites poden no estar 100% correctes.