"Old Icelandic: An Introductory Course" by Sigrid Valfells, James E. Cathey
OxfUni Press | 1981/2 | ISBN: 0198111738 019811172X 9780198111726 9780198111733 | 402 pages | 22 PDF | MB
This book will give you a very good knowledge of the Old Icelandic language. It is a primer for all aspects of the Old Norse language designed to serve the needs of both linguists and literary scholars.