After Colin Andrews and Pat Delgado went their separate ways in 1992, Colin set up Circles Phenomenon Research International and published his magazine from the USA until the late 1990s:
Vol 1 1990
Vol 3 1995
Vol 4 1996
Introduction
Vol 1 #1 Jun 1992
Vol 1 #2 Sep 1992
Vol 1 #3 Winter 1993
Vol 1 #4 Spring 1993
Vol 2 #1 Summer 1993
Vol 2 #2 Fall 1993
Vol 2 #3 Winter 1994
Vol 2 #4 Spring 1994
Vol 3 #1 Summer 1994
Vol 3 #2 Fall 1994
Vol 3 #3 Winter 1995
Vol 4 #1 Spring Summer 1995
Vol 4 #2 Autumn 1995
Vol 5 #1 Spring Summer 1996
Vol 5 #2 Fall 1996 Winter 1997
Vol 6 #1 Spring Summer 1997
Vol 6 #2 Fall 1997
Crop Circle Research Archive 