Cite
MLA Citation
John Foster. “A TRANSPARENT PROTRACTOR FOR SCOTOMETERS.” British journal of ophthalmology, vol. 18, no. 2, 1934, pp. 98–101. http://access.bl.uk/ark:/81055/vdc_100135162666.0x000040
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John Foster. “A TRANSPARENT PROTRACTOR FOR SCOTOMETERS.” British journal of ophthalmology, vol. 18, no. 2, 1934, pp. 98–101. http://access.bl.uk/ark:/81055/vdc_100135162666.0x000040