APA (7th ed.) Citation

Owen, C. (1989). Collins cobuild essential english dictionary workbook. Collins.

Chicago Style (17th ed.) Citation

Owen, Charles. Collins Cobuild Essential English Dictionary Workbook. London ; Glasgow: Collins, 1989.

MLA (9th ed.) Citation

Owen, Charles. Collins Cobuild Essential English Dictionary Workbook. Collins, 1989.

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