Citação norma APA

Adjan, S. I. (1967). Defining Relations and Algorithmic Problems for Groups and Semigroups. Providence, Rhode Island: American Mathematical Society.

Citação norma Chicago

Adjan, S. I. Defining Relations and Algorithmic Problems for Groups and Semigroups. Providence, Rhode Island: American Mathematical Society, 1967.

Citação norma MLA

Adjan, S. I. Defining Relations and Algorithmic Problems for Groups and Semigroups. Providence, Rhode Island: American Mathematical Society, 1967.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.