TY  - BOOK
CN  - P90 .C627 1972
CN  - P90
CY  - San Francisco,
DA  - [1972]
ID  - 46287
KW  - Communication.
PB  - W. H. Freeman
PP  - San Francisco,
PY  - [1972]
SN  - 0716708663
SN  - 0716708655 (pbk)
T1  - Communication.
TI  - Communication.
ER  -