APA (7th ed.) Citation

(2009). My First A, B, C Colouring Book. Rathna Poth Prakashakayo.

Chicago Style (17th ed.) Citation

My First A, B, C Colouring Book. Colombo: Rathna Poth Prakashakayo, 2009.

MLA (9th ed.) Citation

My First A, B, C Colouring Book. Rathna Poth Prakashakayo, 2009.

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