Παραπομπή σε μορφή APA (7η εκδ.)

Welsh, D. J. A. (1971). Combinatorial mathematics and its applications: Proceedings of a conference held at the Mathematical Institute, Oxford, from 7-10 July, 1969. Academic Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Welsh, D. J. A. Combinatorial Mathematics and Its Applications: Proceedings of a Conference Held at the Mathematical Institute, Oxford, from 7-10 July, 1969. London: Academic Press, 1971.

Παραπομπή σε μορφή MLA (8th εκδ.)

Welsh, D. J. A. Combinatorial Mathematics and Its Applications: Proceedings of a Conference Held at the Mathematical Institute, Oxford, from 7-10 July, 1969. Academic Press, 1971.