APA Citation

Ljapin, E. Semigroups. American Mathematical Society, Providence, Rhode Island, 1963.

Chicago Style Citation

Ljapin, E.S.. Semigroups. American Mathematical Society, Providence, Rhode Island, 1963.

MLA Citation

Ljapin, E.S.. Semigroups. American Mathematical Society, Providence, Rhode Island, 1963.

Warning: These citations may not always be 100% accurate.