186 pages long, download at:
http://www.certh-india.com/software-cd/softwares/navisworks/texte/bfts/Roamer_userguide.pdf
What Revit Wants
186 pages long, download at:
http://www.certh-india.com/software-cd/softwares/navisworks/texte/bfts/Roamer_userguide.pdf