APA (7th ed.) Citation

Balasuriya, E. S. (2008). Science grade 7 - activitiy book for students. Samayawardhana.

Chicago Style (17th ed.) Citation

Balasuriya, Eda Subhadra. Science Grade 7 - Activitiy Book for Students. Colombo: Samayawardhana, 2008.

MLA (9th ed.) Citation

Balasuriya, Eda Subhadra. Science Grade 7 - Activitiy Book for Students. Samayawardhana, 2008.

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