Mercene, R. L. (2001). It is now Executive Secretary Angara. Kilosbayan.
Chicago Style aipamenaMercene, Recto L. "It Is Now Executive Secretary Angara." Kilosbayan 2001.
MLA aipamenaMercene, Recto L. "It Is Now Executive Secretary Angara." Kilosbayan, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.