Cite
MLA Citation
Hongyan Xie and Deyu Qi. “A four-stage management mode of safe production affairs.” Journal of physics, vol. 1684, 2020, p. . http://access.bl.uk/ark:/81055/vdc_100116176725.0x00003a
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Hongyan Xie and Deyu Qi. “A four-stage management mode of safe production affairs.” Journal of physics, vol. 1684, 2020, p. . http://access.bl.uk/ark:/81055/vdc_100116176725.0x00003a