Espinas, M. B. (1974). An annotated English poem-translation and a critical study of Ibalong, the Bikol folk epic-fragment [microform]. Photoduplication Service, University of the Philippines Library.
Цитирование в стиле Чикаго (17-е изд.)Espinas, Merito B. An Annotated English Poem-translation and a Critical Study of Ibalong, the Bikol Folk Epic-fragment [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
Цитирование MLA (9-е изд.)Espinas, Merito B. An Annotated English Poem-translation and a Critical Study of Ibalong, the Bikol Folk Epic-fragment [microform]. Photoduplication Service, University of the Philippines Library, 1974.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.