Bibliography 1,672 International relations 1,118 Budget 924 International trade 874 Administrative agencies 864 Chronology 788 Statistics 785 Judge-made law 743 Pollution 737 Economic assistance 662 Research 650 Armed Forces 591 Constitutional law 584 Legislative histories 557 Tax incentives 535 Executive-legislative relations 512 Arms control 479 Law and legislation 443 Income tax 440 Federal government 439 Reorganization 411 Taxation 411 Officials and employees 410 Environmental law 406 Economic policy 404 Federal aid 404 Business 388 Social security 388 Banks and banking 382 Administrative law 381