Broadhurst, J. H. (1959). The development and use of a physical method for measuring the penetration of oxygen into coals. University of Birminghaml.
Citação do estilo Chicago (17ª ed.)Broadhurst, John Henry. The Development and Use of a Physical Method for Measuring the Penetration of Oxygen into Coals. England: University of Birminghaml, 1959.
Citação MLA (8ª ed.)Broadhurst, John Henry. The Development and Use of a Physical Method for Measuring the Penetration of Oxygen into Coals. University of Birminghaml, 1959.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.