APA (7th ed.) Citation

Spake, R. The semigroup of nonempty finite subsets of rationals. Wiley.

Chicago Style (17th ed.) Citation

Spake, Reuben. The Semigroup of Nonempty Finite Subsets of Rationals. Wiley.

MLA (9th ed.) Citation

Spake, Reuben. The Semigroup of Nonempty Finite Subsets of Rationals. Wiley.

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