R-B
TF United States. Army. Corps of...
232 Design for an improved... 1868
-U55 (card
1868 OCLC number: ocml2208150.
fol. 1..Tunnels. I.Foster, John Gray, LE23—18745. ITT. =
RG89-610342 & AACR2 30-6130
TF232.U551868fol. 19515
2)