Here's a useful book for project management
Ministry of Defence - Driving the Successful Delivery of Major Defence Projects: Effective Project Control is a Key Factor in Successful Projects, HC 30, Session 2005-2006: Reported by the Comptroller and Auditor General, The Stationary Office. www.tso.co.uk/bookshop
This book along with the ones mentioned before could be used as a starting point for a "body of knowledge" about project management. Not a body of knowledge, like PMI's Body of Knowledge, which is too general purpose. But a body of knowledge targeted to specific project management practice areas.