Παραπομπή σε μορφή APA (7η εκδ.)

Beer, G. A. (1993). Topologies on Closed and Closed Convex Sets. Kluwer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beer, Gerald Allan. Topologies on Closed and Closed Convex Sets. Dordrecht: Kluwer, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Beer, Gerald Allan. Topologies on Closed and Closed Convex Sets. Kluwer, 1993.