Παραπομπή σε μορφή APA (7η εκδ.)

Shershin, A. C. (1979). Introduction to topological semigroups. University Presses of Florida ; , distributed by University Microfilms International.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Shershin, Anthony Connors. Introduction to Topological Semigroups. Miami : Ann Arbor, Mich.: University Presses of Florida ; , distributed by University Microfilms International, 1979.

Παραπομπή σε μορφή MLA (9th εκδ.)

Shershin, Anthony Connors. Introduction to Topological Semigroups. University Presses of Florida ; , distributed by University Microfilms International, 1979.