Ornos, P. S. (2004). Communication skills in the discipline: College reading and writing. Mutya Publishing House.
Citazione stile Chigago Style (17a edizione)Ornos, Petra S. Communication Skills in the Discipline: College Reading and Writing. Valenzuela City: Mutya Publishing House, 2004.
Citatione MLA (9a ed.)Ornos, Petra S. Communication Skills in the Discipline: College Reading and Writing. Mutya Publishing House, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.