Directories in science and technology :
a provisional checklist.

APA Citation

Library of Congress. Science and Technology Division. (1963). Directories in science and technology: a provisional checklist. Washington: [For sale by the Supt. of Docs., U.S.G.P.O.].

MLA Citation

Library of Congress. Science and Technology Division. Directories In Science And Technology: a Provisional Checklist. Washington: [For sale by the Supt. of Docs., U.S.G.P.O.], 1963.

Warning: These citations may not always be complete (especially for serials).