Cita APA (7th ed.)
Kolby, J. (2000). Vocabulary 4000 eBook: The 4000 essential for an educated vocabulary. Nova Press.
Cita Chicago (17th ed.)
Kolby, Jeff. Vocabulary 4000 EBook: The 4000 Essential for an Educated Vocabulary. Los Angeles: Nova Press, 2000.
Cita MLA (9th ed.)
Kolby, Jeff. Vocabulary 4000 EBook: The 4000 Essential for an Educated Vocabulary. Nova Press, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.