Anonymous - American Engineer Volumes 21-22... - paperback or softbac - X555z

Anonymous - Petroleum Gazette Volumes 22-23... - paperback or softbac - X555z

Anonymous - Country Gentleman Volumes 21-22... - paperback or softbac - X555z

Anonymous - Chemical Engineer Volumes 19-20... - paperback or softbac - X555z

Anonymous - Chemical Engineer Volumes 13-14... - paperback or softbac - X555z

Anonymous - Cornell Civil Engineer Volume 5... - paperback or softbac - X555z

Anonymous - Dependable Highways Volumes 4-5... - paperback or softbac - X555z

Anonymous - American Engineer Volumes 15-16... - paperback or softbac - X555z