Del Prado, M. G. "What and where is Ibalon/". s.n.
Chicago Style (17th ed.) CitationDel Prado, Mariano Goyena. "What and Where Is Ibalon/". s.l: s.n.
MLA (8th ed.) CitationDel Prado, Mariano Goyena. "What and Where Is Ibalon/". s.n.
Warning: These citations may not always be 100% accurate.