Security for dial-up lines
By: Eugene F. Troy.
Series: NBS special publication -- 500-137.; Computer science and technology; NBS special publication
Publisher: U.S. Dept. of Commerce, National Bureau of Standards; For sale by Supt. of Docs., U.S. G.P.O.
Published: 1986
Place of publication: Gaithersberg, MD; Washington, D.C
Language: eng
Format: Microform
Number of pages: 66
Subjects: Computers -- Access control.
Notes: "Issued May 1986."

Bibliography: p. B-1-B-3.

Microfiche (negative) [Washington, D.C.] : SUPTDOCS/GPO, 1986. 1 microfiche ; 11 x 15 cm.