Ashford, M., & Riordan, O. (2017). Counting racks of order n. Electronic Journal of Combinatorics.
Lua i Stíl Chicago (17ú heag.)Ashford, M., agus O. Riordan. Counting Racks of Order N. Electronic Journal of Combinatorics, 2017.
Lua MLA (9ú heag.)Ashford, M., agus O. Riordan. Counting Racks of Order N. Electronic Journal of Combinatorics, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.