: Available at World of Books (~$33.99) or Bookbot.com (~$35.16).
: Can be found at Antoine Online (~$29.93) or AbeBooks (~$18.14).
: Approximately 400 varied exercises to practice the theory immediately.
: Targets the highest level of linguistic nuance. Key Strengths and Considerations Strengths :
Pricing typically ranges from approximately for used copies to over $60 for new sets with answer keys.