World Energy Conference. Conservation Commission, Peters, W., & Schilling, H. (1978). Coal resources: The full report to the Conservation Commission of the World Energy Conference. IPC Science and Technology Press for the WEC.
Цитирование в стиле Чикаго (17-е изд.)World Energy Conference. Conservation Commission, W. Peters, и H.-D Schilling. Coal Resources: The Full Report to the Conservation Commission of the World Energy Conference. Guildford: IPC Science and Technology Press for the WEC, 1978.
Цитирование MLA (8-е изд.)World Energy Conference. Conservation Commission, et al. Coal Resources: The Full Report to the Conservation Commission of the World Energy Conference. IPC Science and Technology Press for the WEC, 1978.
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