Παραπομπή APA

Olappamanna. (1980). Dhukhamavuka Sukham. Sahitya Pravarthaka Co-operative Society Ltd.

Παραπομπή Chicago Style

Olappamanna. Dhukhamavuka Sukham. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1980.

Παραπομπή MLA

Olappamanna. Dhukhamavuka Sukham. Sahitya Pravarthaka Co-operative Society Ltd, 1980.