APA (7th ed.) Citation

Devika Siriardane. (2015). Science, Grade - 06: Activity book ("?".). Sri Lanka Book Depot.

Chicago Style (17th ed.) Citation

Devika Siriardane. Science, Grade - 06: Activity Book. "?". Sri Lanka: Sri Lanka Book Depot, 2015.

MLA (9th ed.) Citation

Devika Siriardane. Science, Grade - 06: Activity Book. "?". Sri Lanka Book Depot, 2015.

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