1 "Ficheiro:Public_Works_digest_-_USACE-p16021coll8-4245.pdf".

Ficheiro:Public Works digest - USACE-p16021coll8-4245.pdf

Greyscale 8 bit/300 dpi, Color 24 bit/300 dpi Source https://usace.contentdm.oclc.org/digital/collection/p16021coll8/id/4245 Date digitized InfoField 2017...