APA ציטוט

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 Style (17th ed.) Citation

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

ציטוט MLA

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