Brand: Océano Ambar
Volumes: 1
Format: 17 x 23.3 cm
Binding: Hardback + jacket
Pages: 294
Characters: 590000
Illustrations: 400
Printing: Black & white
Besides collecting the most interesting X files, this practical handbook presents the techniques used by the most qualified researchers of the paranormal. It includes numerous advices and proposals, plus methods and criteria to evaluate the collected data.