Dyfyniad APA

Cohn, P. M. (1971). Free Rings and Their Relations. London: Academic Press.

Dyfyniad Arddull Chicago

Cohn, P. M. Free Rings and Their Relations. London: Academic Press, 1971.

Dyfyniad MLA

Cohn, P. M. Free Rings and Their Relations. London: Academic Press, 1971.

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