APA (7th ed.) Citation

(1980). English for adults 1. Cornelsen : Oxford University Press.

Chicago Style (17th ed.) Citation

English for Adults 1. Berlin: Cornelsen : Oxford University Press, 1980.

MLA (9th ed.) Citation

English for Adults 1. Cornelsen : Oxford University Press, 1980.

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