APA (7th ed.) Citation

(1999). The world through English: Pupli's workbook 4 grade 9. Dept. of Educational Publications.

Chicago Style (17th ed.) Citation

The World Through English: Pupli's Workbook 4 Grade 9. Battaramulla: Dept. of Educational Publications, 1999.

MLA (9th ed.) Citation

The World Through English: Pupli's Workbook 4 Grade 9. Dept. of Educational Publications, 1999.

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