Chusei Yamada on Codification of the Law on Transboundary Aquifers (Groundwaters) (Russian)
Chusei Yamada on Codification of the Law on Transboundary Aquifers (Groundwaters) by the United Nations (simultaneous interpretation into Russian)
Chusei Yamada on Codification of the Law on Transboundary Aquifers (Groundwaters) by the United Nations (simultaneous interpretation into Russian)