Mrs Y.Sugunthan. Science Grade 06 Part 1. Lanka Book Depot.
Chicago Style (17th ed.) CitationMrs Y.Sugunthan. Science Grade 06 Part 1. Colombo: Lanka Book Depot.
MLA (9th ed.) CitationMrs Y.Sugunthan. Science Grade 06 Part 1. Lanka Book Depot.
Warning: These citations may not always be 100% accurate.