copyright (fair use)

U. S. law allows use of materials for research purposes where 1) the copying is for noncommercial/nonprofit purposes, 2) the nature of the materials being copied is more factual than creative, 3) the amount being copied is a minimal portion of the total work, and 4) the copying is not being used as a means to avoid purchase. Please apply for my permission if any one of these four conditions fails to hold in your case.