Santos, R. P. (1973). Ang Puting waling-waling: A musico-dance drama in three acts story, libretto and music. University Microfilms.
Chicago-referens (17:e uppl.)Santos, Ramon Pagayon. Ang Puting Waling-waling: A Musico-dance Drama in Three Acts Story, Libretto and Music. Michigan: University Microfilms, 1973.
MLA-referens (9:e uppl.)Santos, Ramon Pagayon. Ang Puting Waling-waling: A Musico-dance Drama in Three Acts Story, Libretto and Music. University Microfilms, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.