Beyer, H. O. Philippine customary law: A collection of source material brought together 1912-1931, first as a part of a general Philippine ethnographic study and later in (in more specific form) as a contribution to the European, American, and of the customary law of Indonesia. Photoduplication Service, Library of Congress.

Beyer, Henry Otley. Philippine Customary Law: A Collection of Source Material Brought Together 1912-1931, First as a Part of a General Philippine Ethnographic Study and Later in (in More Specific Form) as a Contribution to the European, American, and of the Customary Law of Indonesia. Washington: Photoduplication Service, Library of Congress.

Beyer, Henry Otley. Philippine Customary Law: A Collection of Source Material Brought Together 1912-1931, First as a Part of a General Philippine Ethnographic Study and Later in (in More Specific Form) as a Contribution to the European, American, and of the Customary Law of Indonesia. Photoduplication Service, Library of Congress.