TY - BOOK TI - AEI special analysis A2 - American Enterprise Institute for Public Policy Research CY - Washington, DC PB - AEI Press PY - 1970 LA - English M3 - Monografische Reihe (DE-588)4179998-7 (DE-627)104628669 (DE-576)209995106 gnd-content M3 - Statistik (DE-588)4056995-0 (DE-627)106152955 (DE-576)209119799 gnd-content ER -