Adreßbücher:Bibl~otheken:Vereinigte C 130 438/IW
Staaten:Columbla . 


Library reference-facilities.-Library and reference 
facilities in the area of the Oistrict of Columbia. 
Mildred Benton, ed. Linda G. Marks, asst. ed. In 
soop. with The Joint Venture.-9th ed. -(Washington:) 
ASIS, AmÖrican Society for Information Science 1975. 
238 S. 4