editor-in-chief, Edwin R. A. Seligman ; associate editor, Alvin Johnson. editor-in-chief, S.D. Haddad ; associate editor, N. Watson. editor-in chief, S.D. Haddad ; associate editor, N. Watson. edited by Edwin R. A. Seligman and Alvin Johnson. editor-in-chief, Rama Cont ; [associate editor, Peter Tankov]. editor-in-chief, Wenbo Xu, associate editor, Dan Liu. editor-in-chief, Z. G. Szabo ; assistant editor, D. Kallo. editor-in-chief, Leonard R. Johnson ; associate editors, Fayez K. Ghishan ... [et al.] editor, Robert C. Weast ; associate editor, Melvin J. Astle. editor-in-chief Sven Erik J2rgensen, associate editor-in-chief Brian Fath.