APA (7th ed.) Citation

Jones, L. (1983). Progress towards First Certificate. Cambridge University Press.

Chicago Style (17th ed.) Citation

Jones, Leo. Progress Towards First Certificate. Cambridge [etc.]: Cambridge University Press, 1983.

MLA (9th ed.) Citation

Jones, Leo. Progress Towards First Certificate. Cambridge University Press, 1983.

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