Gerodias, R. S. (2001). Learning how to be a big brother or sister. IN Teacher tips [column]. Philippine Star.
Citazione stile Chigago Style (17a edizione)Gerodias, Rebecca S. "Learning How to Be a Big Brother or Sister. IN Teacher Tips [column]." Philippine Star 2001.
Citatione MLA (9a ed.)Gerodias, Rebecca S. "Learning How to Be a Big Brother or Sister. IN Teacher Tips [column]." Philippine Star, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.