Warren, C. P. (1985). Black Asians in the Philippines the "Negrito problem" revisited. Pilipinas : a journal of Philippine studies.
Citazione stile Chigago Style (17a edizione)Warren, Charles P. "Black Asians in the Philippines the "Negrito Problem" Revisited." Pilipinas : A Journal of Philippine Studies 1985.
Citatione MLA (9a ed.)Warren, Charles P. "Black Asians in the Philippines the "Negrito Problem" Revisited." Pilipinas : A Journal of Philippine Studies, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.