Gray Newman (Newman, Gray)

• 
  Business International's Guide to Doing Business in Mexico
  by Gray Newman, Anna Szterenfeld
  Hardcover, McGraw-Hill, ISBN 0070093393 (0-07-009339-3)
• 
  Guide to Doing Business in Mexico
  by Gray Newman, Anna Szterenfeld
  Softcover, McGraw-Hill, ISBN 0070463786 (0-07-046378-6)