APA (7e ed.) Bronvermelding

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.

Chicago (17e ed.) Bronvermelding

Breag, G.R, en 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.

MLA (9e ed.) Bronvermelding

Breag, G.R, en 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.