Harris, H. H. (1959). The history and calculation of pi. Graduate Division of the Kansas State Teachers College.
Citación estilo ChicagoHarris, Herman H. The History and Calculation of Pi. Emporia: Graduate Division of the Kansas State Teachers College, 1959.
Cita MLAHarris, Herman H. The History and Calculation of Pi. Graduate Division of the Kansas State Teachers College, 1959.
Warning: These citations may not always be 100% accurate.