APA (7th ed.) Citation

Umar, A. (2014). Some combinatorial problems in the theory of partial transformation semigroups.

Chicago Style (17th ed.) Citation

Umar, A. Some Combinatorial Problems in the Theory of Partial Transformation Semigroups. 2014.

MLA (8th ed.) Citation

Umar, A. Some Combinatorial Problems in the Theory of Partial Transformation Semigroups. 2014.

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