Society, P. I. (1901). Taking the Southern Islands: Facts about the Filipinos according to Original Outline, First Series X. Boston.
Chicago-referens (17:e uppl.)Society, Philippine Information. Taking the Southern Islands: Facts About the Filipinos According to Original Outline, First Series X. Boston, 1901.
MLA-referens (8:e uppl.)Society, Philippine Information. Taking the Southern Islands: Facts About the Filipinos According to Original Outline, First Series X. Boston, 1901.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.