Walls -- Italy -- Rome -- History. / https://id.loc.gov/authorities/subjects/sh85144957 https://id.loc.gov/authorities/names/n79018704-781 https://id.loc.gov/authorities/subjects/sh99005024 : Dey, Hendrik W.,
Walls -- Mexican-American Border Region -- Planning. / https://id.loc.gov/authorities/subjects/sh85144957 https://id.loc.gov/authorities/subjects/sh85084485-781 https://id.loc.gov/authorities/subjects/sh2002006228 : United States.
Walls -- Political aspects -- History. / https://id.loc.gov/authorities/subjects/sh85144957 https://id.loc.gov/authorities/subjects/sh00005651 https://id.loc.gov/authorities/subjects/sh99005024 : Chaichian, Mohammad A.
Walls, Roman -- Great Britain. / https://id.loc.gov/authorities/subjects/sh85114947 https://id.loc.gov/authorities/names/n79023147-781 : Harrison, David,
1956
1
Walls -- United States -- Design and construction -- Safety measures. / https://id.loc.gov/authorities/subjects/sh85144957 https://id.loc.gov/authorities/names/n78095330-781 https://id.loc.gov/authorities/subjects/sh2002006372 https://id.loc.gov/authorities/subjects/sh00007912