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1. A guide to the Upper Essequibo river, Guyana/   Publication: London: Royal Geographical Society, 1972 . 12p., 2 leaves of plates: , Reprinted from Geographical journal, vol. 138, pt. 1, March 1972, p. 41-52. Date:1972 Availability: Copies available: Turkeyen Campus Caribbean Research Library [GB160 B4] (2), Actions: Add to cart No cover image available No cover image available
2. A guide to the Upper Essequibo river, Guyana/   Publication: London: Royal Geographical Society, 1972 . 12p., 2 leaves of plates: , Reprinted from Geographical journal, vol. 138, pt 1, March 1972, p. 41-52. Date:1972 Availability: Copies available: Turkeyen Campus Caribbean Research Library [GB160 B4] (2), Actions: Add to cart No cover image available No cover image available