APA (7th ed.) Citation

Levis, G., & Castillo, B. d. (1991). English Through Computers 2. McGraw-Hill.

Chicago Style (17th ed.) Citation

Levis, Gerard, and Beatriz del Castillo. English Through Computers 2. Madrid: McGraw-Hill, 1991.

MLA (9th ed.) Citation

Levis, Gerard, and Beatriz del Castillo. English Through Computers 2. McGraw-Hill, 1991.

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