Data Retrieval Language(ID:3449/dat019)

Dept of Supply 4GL?
References:
  • Fong, E. (1971). A preliminary design of a data retrieval language to handle a generalized data base: DRL. Washington,, National Bureau of Standards; for sale by the Supt. of Docs. U.S. Govt. Print. Off. view details
  • Library of Congress Subject Headings D25 view details