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Zone + 45 ̊of Kapteyn's selected areas : photographic photometry for 1550 stars

MLA

Parkhurst, John Adelbert and Alice H. Farnsworth. Zone + 45 ̊of Kapteyn's selected areas : photographic photometry for 1550 stars. Chicago, Ill. : University of Chicago Press, [1927]

APA

Parkhurst, J. & Farnsworth, A. (1927). Zone + 45 ̊of Kapteyn's selected areas : photographic photometry for 1550 stars. Chicago, Ill. : University of Chicago Press.

Chicago

Parkhurst, John Adelbert and Alice H. Farnsworth. Zone + 45 ̊of Kapteyn's selected areas : photographic photometry for 1550 stars. Chicago, Ill. : University of Chicago Press, [1927]

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