Author: B. Landheer, G. van der Molen, B. H. M. Vlekke, H. Exc. John A. Thivy, Kweè San Liat, Harold Sprout, Jacques Ellul, Mrs. H. Verwey-Jonker (auth.)
Author: D. Eugene Strandness (auth.), M. Gene Bond Ph.D., William Insull Jr. M.D., Seymour Glagov M.D., A. Bleakley Chandler M.D., J. Fredrick Cornhill D. Phil. (eds.)