William Safran
Robert D. Eilers
Davis W. Gregg
Rolf Mauch
Carl Martin Roos
Architects Benevolent Society.
American Management Association.
Hans-Kaspar Zulauf
Antonio Porras Rodríguez
Robert W. Batten
Canada. Dominion Bureau of Statistics.
Unknown Author
Harriett E. Jones
Christian Holenstein
Marcel Milcamps
Frances Beatrice Brower
National Industrial Conference Board.
Carl Sandburg