Breag, G., & Harker, A. (1979). The utilization of waste heat produced during the manufacture of coconut shell charcoal for the centralised production of copra. Tropical Products Institute.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Breag, G.R, و A.P Harker. The Utilization of Waste Heat Produced During the Manufacture of Coconut Shell Charcoal for the Centralised Production of Copra. London: Tropical Products Institute, 1979.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Breag, G.R, و A.P Harker. The Utilization of Waste Heat Produced During the Manufacture of Coconut Shell Charcoal for the Centralised Production of Copra. Tropical Products Institute, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.