10 books • 6 series
Vault Guide to the Top Energy & Oil/Gas Employers (Vault Guide to the Top Energy & Oil/Gas Employers)
Vault Guide to the Top Pharmaceuticals and Biotech Employers (Vault Guide to the Top Pharmaceuticals & Biotech Employers)
Vault Guide to the Top 100 Law Firms, 5th Edition (Vault Guide to the Top 100 Law Firms)