Gas geochemistry studies at Poas volcano, Costa Rica March 1992 and January 1993.

Document:	4973
Title:	Gas geochemistry studies at Poas volcano, Costa Rica March 1992 and January 1993.
Author:	Nicholson, R. A; Howells, M. F; Baxter, Peter J; Clegg, S. L; Barquero, Jorge. Nottingham, GB; 1993

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