Annotated bibliography on hydrology (1951-54) and sedimentation (1950-54) United States and Canada.

"Supplement to the Annotated bibliography on hydrology (Notes on hydrologic activities, Bull. no. 5) and Annotated bibliography on sedimentation (Sedimentation bull. no. 2)"

Hydrology of area 52, Rocky Mountain coal province Wyoming, Colorado, Idaho, and Utah /

Mode of access: Internet.

Hydrology of area 41, western region, interior coal province, Oklahoma and Arkansas /

Mode of access: Internet.

Hydrology of area 48, northern Great Plains and Rocky Mountain coal provinces, Montana and Wyoming /

Mode of access: Internet.