APA-ийн эшлэл(7 дахь хэвлэлт)
FURNESS, C. E. (1900). Catalogue of Stars within one Degree of the North Pole and optical distortion of the Helsingfors astro-photographic telescope deduced from photographic measures.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
FURNESS, Caroline Ellen. Catalogue of Stars Within One Degree of the North Pole and Optical Distortion of the Helsingfors Astro-photographic Telescope Deduced from Photographic Measures. Poughkeepsie, 1900.
MLA -ийн эшлэл (9 дэх хэвлэлт)
FURNESS, Caroline Ellen. Catalogue of Stars Within One Degree of the North Pole and Optical Distortion of the Helsingfors Astro-photographic Telescope Deduced from Photographic Measures. 1900.
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