Matches in Library of Congress for { ?s ?p Hydraulic structures.. }
- 91142846 subject "Hydraulic structures.".
- 91187477 subject "Hydraulic structures.".
- 91204456 subject "Hydraulic structures.".
- 92150899 subject "Hydraulic structures.".
- 92200927 subject "Hydraulic structures.".
- 92215438%2F%2Fr95 subject "Hydraulic structures.".
- 93980726 subject "Hydraulic structures.".
- 94930597 subject "Hydraulic structures.".
- 99227542 subject "Hydraulic structures.".
- he67000094 subject "Hydraulic structures.".