APA

Kopal Z., . (1943). An application of the method of least squares to the adjustment of photometric elements of eclipsing binaries. U.S.A: American Philosophical Society.

Chicago

Kopal Zdenek, . 1943. An application of the method of least squares to the adjustment of photometric elements of eclipsing binaries. U.S.A: American Philosophical Society.

Harvard

Kopal Z., . (1943). An application of the method of least squares to the adjustment of photometric elements of eclipsing binaries. U.S.A: American Philosophical Society.

MLA

Kopal Zdenek, . An application of the method of least squares to the adjustment of photometric elements of eclipsing binaries. U.S.A: American Philosophical Society. 1943.