Citations
Envelope AMS Symbols and Colour: AMS Color and Screen Guide 1962; AMS Ink Color Guide 1956; AMS Symbols for medium scale maps 1951; Symbols for small scale maps 1953, 1954, 1951 - 1964, GBR/3296/Maps/CCSA.IM_L149_9, IM_L149_9. Cambridge University Library. |
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Envelope AMS Symbols and Colour: AMS Color and Screen Guide 1962; AMS Ink Color Guide 1956; AMS Symbols for medium scale maps 1951; Symbols for small scale maps 1953, 1954, 1951 - 1964, GBR/3296/Maps/CCSA.IM_L149_9, IM_L149_9. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/246396 Accessed November 16, 2024. |