P and I International. Vol 6 (1992) / editor Bill Robertson
uvezano

01 / Vol 6, No. 1 (January 1992)
02 / Vol 6, No. 2 (February 1992)
03 / Vol 6, No. 3 (March 1992)
04 / Vol 6, No. 4 (April 1992)
05 / Vol 6, No. 5 (May 1992)
06 / Vol 6, No. 6 (June 1992)
07 / Vol 6, No. 7 (July 1992)
08 / Vol 6, No. 8 (August 1992)
09 / Vol 6, No. 9 (September 1992)
10 / Vol 6, No. 10 (October 1992)
11 / Vol 6, No. 11 (November 1992)
12 / Vol 6, No. 12 (1992) ???