Tohutoro APA (7th ed.)

Johnson, D. L. (1980). Topics in the group presentations. Cambridge University.

Tohutoru Kātū Chicago (17th ed.)

Johnson, David Leroy. Topics in the Group Presentations. Cambridge: Cambridge University, 1980.

Tohutoro MLA (9th ed.)

Johnson, David Leroy. Topics in the Group Presentations. Cambridge University, 1980.