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1. Distribution of elements in the Roraima formation of the Amazonas Federal territory (Venezuela)   Publication: 1975 . [viii], 113 leaves : ill. , Date:1975 Availability: Copies available: Turkeyen Campus Caribbean Research Library [QE471.15 S25 M37] (1), Actions: Add to cart No cover image available No cover image available
2. Roraima :   Publication: Venezuela : Editorial Arte Press in Caracas, 1988 . 153 p. : , Translation of Roraima, la montaña de cristal Date:1988 Availability: Copies available: Turkeyen Campus Caribbean Research Library [F2609 B74] (1), Actions: Add to cart
3. On the frontier of British Guiana and Brazil :   Publication: Guyana : Guyana National Printers, 1993 . 131 p. : Date:1993 Availability: Copies available: Turkeyen Campus [F2372 D45] (1), Actions: Add to cart No cover image available No cover image available