Ashford, M., & Riordan, O. (2017). Counting racks of order n. Electronic Journal of Combinatorics.
Cita Chicago (17th ed.)Ashford, M., i O. Riordan. Counting Racks of Order N. Electronic Journal of Combinatorics, 2017.
Cita MLA (9th ed.)Ashford, M., i O. Riordan. Counting Racks of Order N. Electronic Journal of Combinatorics, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.