Johnson, D. L. (1980). Topics in the group presentations. Cambridge University.
Chicagoスタイル(17版)引用形式Johnson, David Leroy. Topics in the Group Presentations. Cambridge: Cambridge University, 1980.
MLA(9版)引用形式Johnson, David Leroy. Topics in the Group Presentations. Cambridge University, 1980.
警告: この引用は必ずしも正確ではありません.