Guillermo, R. G., & Agabin, M. E. (2013). A German travels to the north in 1878: Golden Anitos, bird-scaring machines, and the tree of justice. Philippine Studies: Historical and Ethnographic Viewpoints.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Guillermo, Ramon G., و Maria Eliza Agabin. "A German Travels to the North in 1878: Golden Anitos, Bird-scaring Machines, and the Tree of Justice." Philippine Studies: Historical and Ethnographic Viewpoints 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Guillermo, Ramon G., و Maria Eliza Agabin. "A German Travels to the North in 1878: Golden Anitos, Bird-scaring Machines, and the Tree of Justice." Philippine Studies: Historical and Ethnographic Viewpoints, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.