APA (7th ed.) Citation

Wieth-Knudsen, N. (1953). Studies on orbit determination of visual binary stars in some extreme cases. The Observatory.

Chicago Style (17th ed.) Citation

Wieth-Knudsen, Niels. Studies on Orbit Determination of Visual Binary Stars in Some Extreme Cases. Lund: The Observatory, 1953.

MLA (9th ed.) Citation

Wieth-Knudsen, Niels. Studies on Orbit Determination of Visual Binary Stars in Some Extreme Cases. The Observatory, 1953.

Warning: These citations may not always be 100% accurate.