Directories -- Directories 35 Officials and employees -- 11 Civil service -- 10 Industries -- 9 Libraries -- 9 Government -- 8 more ... Handbooks, manuals, etc. -- 8 Handbooks, manuals, etc 7 Periodicals -- 7 Business enterprises -- 6 Biography -- 5 Corporations -- 5 Administrative agencies -- 4 Commerce 4 Commerce -- 4 Economics -- 4 Manufacturers -- 4 Manufactures -- 4 Business people -- 3 Economic -- 3 Entrepreneurship -- 3 Politicians -- 3 Statesmen -- 3 Archival resources -- 2 Archives -- 2 Associations, institutions, etc -- 2 Building -- 2 Business -- 2 Computer network resources -- 2 less ...