Rudolf L. Schreiber,...[et al.] Rudolf Arnheim,...[et al.] Andrew B. Crider,...[et al.] Rudolf B.Schlesinger [et al.] Rudolf Stich...[et al.] Charles F. Turner,...[et al.] H. Schirmer,...[et al.] Henry L. Roediger,...[et al.] Philip L.Gerber,...[et al.] Alan P. Wagner,...[et al.]