These call numbers should help you browse the shelves.
330 Economics
331 Labor economics
332 Financial economics
333 Economics of land & energy
336 Public finance
337 International economics
338 Production
339 Macroeconomics & related topics
380 Commerce, communications & transportation
381 Commerce
382 International commerce
650 Management & auxiliary services
651 Office services
652 Processes of written communication
657 Accounting
658 General management
659 Advertising & public relations