APA (7th ed.) Citation

Dissanayake, P. S. (2011). Unseen passages advanced level English. Stamford Lake.

Chicago Style (17th ed.) Citation

Dissanayake, P. S. Unseen Passages Advanced Level English. Pannipitiya: Stamford Lake, 2011.

MLA (9th ed.) Citation

Dissanayake, P. S. Unseen Passages Advanced Level English. Stamford Lake, 2011.

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