APA (7e ed.) Bronvermelding

Porter, J. B., Durley, R. J., Stansfield, E., Denis, T. C., Brunton, S. L., De Hart, J. B., . . . Cameron, A. E. (1912). An investigation of the coals of Canada: With reference to their economic qualities. Government printing bureau.

Chicago (17e ed.) Bronvermelding

Porter, John Bonsall, Richard John Durley, Edgar Stansfield, Theophile Constant Denis, Stopford Lauder Brunton, Joseph Bertram De Hart, Edward Eric Billington, en Alan Emerson Cameron. An Investigation of the Coals of Canada: With Reference to Their Economic Qualities. Ottawa: Government printing bureau, 1912.

MLA (8e ed.) Bronvermelding

Porter, John Bonsall, et al. An Investigation of the Coals of Canada: With Reference to Their Economic Qualities. Government printing bureau, 1912.