Castro, R. A. (2013). Pinoy student engineers gear up for Shell eco-maration 2013. Gadgets.
芝加哥风格引文Castro, Racine Anne. "Pinoy Student Engineers Gear Up for Shell Eco-maration 2013." Gadgets 2013.
MLA引文Castro, Racine Anne. "Pinoy Student Engineers Gear Up for Shell Eco-maration 2013." Gadgets, 2013.
警告：这些引文格式不一定是100％准确.