C 130.438 [/J Library reference-faci1ities. -Library and reference facilities in the area of the District of C01umbia. Mildred Benton, ed. Linda G.... l-:arks, asst. ed. In coop. \-lith The Joint Venture. 9th ed. -(Hashington:) ASIS, American Society for Information 0 Science 1975. 238 S. 4