APA (7th ed.) Citation

HarperCollins (Firm) & Butterfield, J. (2005). Collins Spanish dictionary (8th ed.). HarperCollins.

Chicago Style (17th ed.) Citation

HarperCollins (Firm) and Jeremy Butterfield. Collins Spanish Dictionary. 8th ed. Glasgow, Great Britain ; New York, NY: HarperCollins, 2005.

MLA (9th ed.) Citation

HarperCollins (Firm) and Jeremy Butterfield. Collins Spanish Dictionary. 8th ed. HarperCollins, 2005.

Warning: These citations may not always be 100% accurate.