by L. Rosenhead ...[et al.]. by L. Dillinger ...[et al.]. by L. H. Sarett ...[et al.]. by L. E. Grinberg ...[et al.]. by Loschmann ...[et al.]. by L. V. Groshev ... [et al.]. by L. S. Pontryagin ...[et al.]. Henry L. Roediger ... [et al.]. edited by R. M. Rosenberg ...[et al.]. by Dr. A. R. Todd ...[et al.].