TY  - BOOK
T1  - 2020 AD :a survey of the Ohio River basin (excluding the Tennessee River basin) : its assets, its problems, its future requirements and what can be done about them.
DA  - 1970?].
CY  - [Cincinnati :
CN  - TC425
CN  - TC425
PB  - U.S. Army Corps of Engineers, Ohio River Division,
PP  - [Cincinnati :
PY  - 1970?].
N1  - On cover: 2020 AD, the next half-century in the Ohio River basin.
ID  - 18615
KW  - Water resources development
TI  - 2020 AD :a survey of the Ohio River basin (excluding the Tennessee River basin) : its assets, its problems, its future requirements and what can be done about them.
ER  -