July 13, 1988.
Shipping list no. : 88-497-P.
CRDP Program Historic Shelflist record.
United States, . (1988). Ocean air traffic control. [Washington, D.C: .
United States, . 1988. Ocean air traffic control. [Washington, D.C: .
United States, . Ocean air traffic control. [Washington, D.C: . 1988.