These books either have a section on qualitative dissertations or are all about qualitztive dissertations.

Locke, L., Spirduso, W. W. & Silverman, S. J. (2000).  Proposals that work: A guide for planning dissertations and grant proposals. Fourth Edition.  Sage: Thousand Oaks, CA.

Meloy, J. M. (2002).  Writing the qualitative dissertation: Understanding by doing. Lawrence Erlbaum: Mahwah, NJ.

Piantanida, M., & Garman, N. B.  The qualitative dissertation: A guide for faculty and students.  Corwin Press: Thousand Oaks, CA.

Rudestam, K. E. & Newton, R. R. (2001).  Surviving your dissertation: A comprehensive guide to content and process.  Second Edition. Sage: Thousand Oaks.