APA (7th ed.) Citation

Aston, P., & Edmondson, E. (1990). Streets ahead: Student´s book 1. Oxford University Press.

Chicago Style (17th ed.) Citation

Aston, Paul, and Elizabeth Edmondson. Streets Ahead: Student´s Book 1. Oxford: Oxford University Press, 1990.

MLA (9th ed.) Citation

Aston, Paul, and Elizabeth Edmondson. Streets Ahead: Student´s Book 1. Oxford University Press, 1990.

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