Bell Telephone Laboratories Pictures from Bell Telephone Laboratories!, U.st, 1928= 1928, (Ikke digitaliseret)
Transportation. General safety rules. [Ed. by] U.S.Navy Yards and Naval Stations. Vashington?TJ. Sogvmt. prtg. of f. , 1928 1928, (Ikke digitaliseret)
Chemisch Weekblad. Orgaan van de Nederlandse Chemische Vereniging. Amsterdam 1928- Jaargang 25- 1928, (Ikke digitaliseret)
Pfeiffer,E, und W.Schweisheimer Ändert die Technik den menschlichen Körper? 5'iÄufla 1928, (Ikke digitaliseret)
Transportation. General safety rules. ['Ed. "by] UoScNavy Yards and Naval Stations. Washington,IJ0S0gvmt.prtg.off. ,1928. 1928, (Ikke digitaliseret)
Håndbog i fremmede Landes Konsulatsfaktura-, Oprindelsescertifikat- og Mærknings-Bestemmelser m.m. [København],Fers-lew,1928. 1928, Boetius, P.; Wenck, H., (Ikke digitaliseret)
Reinforced concrete bridges. The practical design of modern reinforced concrete bridges including notes on temperature and shrinkage effects. 1928, (Ikke digitaliseret)