| |||
| 変水頭 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
variable head : 1 phrase in 1 subject |
| Sound recording | 1 |
| |||
| 変水頭 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
variable head : 1 phrase in 1 subject |
| Sound recording | 1 |