Guide to space issues for the 1990sRobert L. Butterworth, Robert Lyle Butterworth, Center for National Security Studies (Los Alamos National Laboratory) · First published 1992Open the Tome
Interstate security conflicts, 1945-1974Robert Lyle Butterworth, Inter-university Consortium for Political and Social Research · First published 1977Open the Tome
Conflict management by international organizations, 1945-1970Ernst B. Haas, Robert Lyle Butterworth, Joseph S. Nye, Inter-university Consortium for Political and Social Research · First published 1970Open the Tome
