Standard time zones of the United States and adjacent parts of Canada and Mexico as of April 1, 1930
| Autores Corporativos: | , |
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| Otros Autores: | |
| Formato: | Mapa |
| Idioma: | Inglés |
| Colección: | National Bureau of Standards miscellaneous publication ;
no. 111 |
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991004599729706719 |
| Notas: | "Base map by U.S. Geological Survey." "Information by Interstate Commerce Commission." |
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| Descripción Física: | 1 map : cololor ; 43 x 70 cm |
