Ecuador-escala 1:250.000. Mapa básico regional de la cuenca del Río Guayas, Península de Santa Elena y regiones contiguas /
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| Format: | Map |
| Language: | Spanish |
| Published: |
Quito, Ecuador :
El Instituto,
[1981]
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| Item Description: | "Julio de 1981." Relief shown by contours, gradient tints, and spot heights. Standard map series designation: Serie J521 = [Series] J521. Includes location map and coat of arms. Cartographic material. |
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| Physical Description: | 1 map on 4 sheets : color ; 128 x 120 cm., sheets 71 x 65 cm. or smaller. |