APA (7th ed.) Citation

Jones,Leo. (1983). Progress: Towards first certificate / Leo Jones. Cambridge.

Chicago Style (17th ed.) Citation

Jones,Leo. Progress: Towards First Certificate / Leo Jones. Cambridge, 1983.

MLA (8th ed.) Citation

Jones,Leo. Progress: Towards First Certificate / Leo Jones. Cambridge, 1983.

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