International legend for hydrogeological maps. : Leyenda internacional para mapas hidrogeologicos. Legende internationale des cartes hydrogeologiques. Mezhdunarodnaia legenda k gidrogeologicheskim kartam. (romanized form).
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| Format: | Book |
| Language: | English French Russian Spanish |
| Published: |
[Paris],
[publisher not identified] ;
[1970]
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| Subjects: |
| Item Description: | English, French, Russian and Spanish. |
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| Physical Description: | 101 pages : illustrations (part color), color map. ; 30 cm. |
| Bibliography: | Bibliography: 79-83. |