Parker, L. Report on work among the Negritos of Pampanga during the period from April 15th to May 31st, 1908. s.n.
Chicago Style aipamenaParker, Luther. Report on Work Among the Negritos of Pampanga During the Period from April 15th to May 31st, 1908. [S.l: s.n.
MLA aipamenaParker, Luther. Report on Work Among the Negritos of Pampanga During the Period from April 15th to May 31st, 1908. s.n.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.