Wallenquist, Å. (1948). Determinations of magnitude differences in Southern double stars. Almqvist & Wiksell.
Chicago Style (17th ed.) CitationWallenquist, Åke. Determinations of Magnitude Differences in Southern Double Stars. Stockholm: Almqvist & Wiksell, 1948.
MLA (9th ed.) CitationWallenquist, Åke. Determinations of Magnitude Differences in Southern Double Stars. Almqvist & Wiksell, 1948.
Warning: These citations may not always be 100% accurate.