Directories Directories -- Officials and employees -- 11 Civil service -- 10 Government -- 8 Handbooks, manuals, etc 7 Handbooks, manuals, etc. -- 7 more ... Industries -- 7 Periodicals -- 7 Business enterprises -- 4 Commerce 4 Economics -- 4 Manufacturers -- 4 Manufactures -- 4 Biography -- 3 Commerce -- 3 Corporations -- 3 Economic -- 3 Libraries -- 3 Administrative agencies -- 2 Computer network resources -- 2 Europe -- 2 Heads of state -- 2 Information services -- 2 Legislators -- 2 Statesmen -- 2 Associations, institutions, etc -- 1 Computer-network resources -- 1 Directiries -- 1 Electronic mail systems -- 1 less ...