APA (7th ed.) Citation

Beaumont D. Digby & Granger C. Colin. (1998). The Heinemann ELT English Grammar. Oxford, Macmillan Heinemann, 1998.

Chicago Style (17th ed.) Citation

Beaumont D. Digby and Granger C. Colin. The Heinemann ELT English Grammar. Oxford, Macmillan Heinemann, 1998, 1998.

MLA (9th ed.) Citation

Beaumont D. Digby and Granger C. Colin. The Heinemann ELT English Grammar. Oxford, Macmillan Heinemann, 1998, 1998.

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