(1999). May katwiran ang katwiran. Office of the Vice-Chancellor for Research and Development, Office of the Vice-Chancellor for Academic Affairs, Departamento ng Filipino at Panitikan ng Pilipinas, University of the Philippines, Diliman.
Cita Chicago (17th ed.)May Katwiran Ang Katwiran. Quezon City: Office of the Vice-Chancellor for Research and Development, Office of the Vice-Chancellor for Academic Affairs, Departamento ng Filipino at Panitikan ng Pilipinas, University of the Philippines, Diliman, 1999.
Cita MLA (9th ed.)May Katwiran Ang Katwiran. Office of the Vice-Chancellor for Research and Development, Office of the Vice-Chancellor for Academic Affairs, Departamento ng Filipino at Panitikan ng Pilipinas, University of the Philippines, Diliman, 1999.