Cite
MLA Citation
Henry Ricardo. “On 'On the frequency of Friday the thirteenth'.” Mathematical gazette, vol. 105, no. 564, 2021, p. 550. http://access.bl.uk/ark:/81055/vdc_100145480504.0x000045
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Henry Ricardo. “On 'On the frequency of Friday the thirteenth'.” Mathematical gazette, vol. 105, no. 564, 2021, p. 550. http://access.bl.uk/ark:/81055/vdc_100145480504.0x000045