Private Investigations:A Guide for the Beginner
Private Investigations:A Guide for the Beginner by Edward J. Herdrich
The Investigator's Little Black Book 3
The Complete Idiot's Guide to Private Investigating, Third Edition (Idiot's Guides)
Introduction to Conducting Private Investigations: Private Investigator Entry Level (02E) (2nd Edition)
Private Investigation 101
How to Open & Operate a Financially Successful Private Investigation Business (How to Open & Operate a ...)