Castro, M. C. A. (2006). A practical description of English: The simple present is rarely present and far from simple. Philippine Journal for Language Teaching.
Cita Chicago (17th ed.)Castro, Maria Corazon A. "A Practical Description of English: The Simple Present Is Rarely Present and Far from Simple." Philippine Journal for Language Teaching 2006.
Cita MLA (9th ed.)Castro, Maria Corazon A. "A Practical Description of English: The Simple Present Is Rarely Present and Far from Simple." Philippine Journal for Language Teaching, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.