TY  - BOOK
AU  - Rayner, William Horace
AU  - xx, 686 p.
AU  - Schmidt, Milton O.
AU  - Title
TI  - Digital communications
SN  - 0442068549
PY  - 1969///]
CY  - New York
PB  - Van Nostrand-Reinhold
KW  - Surveying
N1  - Includes bibliographies
ER  -