Vergouwen, J. C. (1964). The social organisation and customary law of the Toba-Batak of Northern Sumatra. M. Nijhoff.
Citazione stile Chigago Style (17a edizione)Vergouwen, Jacob Cornelis. The Social Organisation and Customary Law of the Toba-Batak of Northern Sumatra. The Hague: M. Nijhoff, 1964.
Citatione MLA (9a ed.)Vergouwen, Jacob Cornelis. The Social Organisation and Customary Law of the Toba-Batak of Northern Sumatra. M. Nijhoff, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.