Citations
B.S.I.P. SAN CRISTOBAL, 1:50,000 (D.O.S. 456) ; progress folder : authority for mapping, area of mapping, general material, air photography, letters, diagrams, reports, footnotes., 1964-01-01 - 1972-12-31, GBR/3296/Maps/CCSA.DOS_261_14, DOS_261_14. Cambridge University Library. |
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B.S.I.P. SAN CRISTOBAL, 1:50,000 (D.O.S. 456) ; progress folder : authority for mapping, area of mapping, general material, air photography, letters, diagrams, reports, footnotes., 1964-01-01 - 1972-12-31, GBR/3296/Maps/CCSA.DOS_261_14, DOS_261_14. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/237788 Accessed November 14, 2024. |