APA (7th ed.) Citation

Jacobs & Loh. (2002). Grammar in use workbook 4. Learners Publ.

Chicago Style (17th ed.) Citation

Jacobs and Loh. Grammar in Use Workbook 4. Singapore: Learners Publ, 2002.

MLA (8th ed.) Citation

Jacobs and Loh. Grammar in Use Workbook 4. Learners Publ, 2002.

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