
Schuster (New York, 1991) and Robert A. Rankin, American Mathematical Society and London Mathematical Society (1995) Carr, 2nd Edition, Chelsea Publishing (New York 1970); first edition published in 1880 in London and Cambridge by Bibhutibhushan Dutta and Avadhesh Narayan Singh (1962, Asia Publishing House) (New Delhi 1964, original London 1888) Click here for original in english© 1999, Parabaas, Inc. 