Balisco, R. A. T. (2015). Notes on the Gracious Sea Urchin Tripneustes gratilla (Echinodermata: Echinoidea) in Pag-asa Island, Kalayaan, Palawan, Philippines. The Palawan Scientist.
芝加哥风格引文Balisco, Rodulf Anthony T. "Notes on the Gracious Sea Urchin Tripneustes Gratilla (Echinodermata: Echinoidea) in Pag-asa Island, Kalayaan, Palawan, Philippines." The Palawan Scientist 2015.
MLA引文Balisco, Rodulf Anthony T. "Notes on the Gracious Sea Urchin Tripneustes Gratilla (Echinodermata: Echinoidea) in Pag-asa Island, Kalayaan, Palawan, Philippines." The Palawan Scientist, 2015.
警告：这些引文格式不一定是100％准确.