Upphovsman
American Association of Engineers
1
American Society of Mechanical Engineers
1
Ecole polytechnique (Montréal, Québec). Association des diplômés de polytechnique
1
Fukui Daigaku. Kōgakubu
1
Gale, Mary E. Miller
1
Germany. Ministerium der ̈Offentlichen Arbeiten
1
Guo jia ke xue wei yuan hui
1
H.W. Wilson Company
1
Rockwood, Nathan C.
1
South African Council for Scientific and Industrial Research
1