These are just a few sources, generously identified by Lada Kochtcheeva Dunbar, who graduated from U of O and now (Fall 2006) teaches at the University of Michigan - Dearborn. These are her suggestions based on her own experience as she converts her thesis into a book.
1. The art of writing for publication / Kenneth T. Henson
2. Getting it published : a guide for scholars and anyone else serious about serious books / William Germano
3. A writer's guide to book publishing / by Richard Balkin, with two chapters by Jared Carter
4. The Thesis and the Book , Eleanor Harman and Ian Montagnes, eds.
5. Richard Lanham, Revising Prose , 3rd edition.
6. Robin Derricourt, An Author's Guide to Scholarly Publishing.