APA (7th ed.) Citation

Ariyasinghe, K., Indragupta, U. t., & Siebet, M. t. (2006). Science & technology woork book ( grade 9 ). Sarasavi.

Chicago Style (17th ed.) Citation

Ariyasinghe, K., Upali tr Indragupta, and Malinie tr Siebet. Science & Technology Woork Book ( Grade 9 ). Nugegoda: Sarasavi, 2006.

MLA (9th ed.) Citation

Ariyasinghe, K., et al. Science & Technology Woork Book ( Grade 9 ). Sarasavi, 2006.