Spine title: Unauthorized migration hearings, 1988-1990.
"To accompany the final report of the Commission Unauthorized migration: an economic development response."
Shipping list number: 90-500-P.
"March 14, September 14, 1988; April 20, April 21, July 12, July 14, September 18, September 22, 1989 and January 22, 1990."