APA (7th ed.) Citation

Hamburger Sternwarte & Warner and Swasey Observatory. Luminous stars in the northern Milky Way. Hamburger Sternwarte.

Chicago Style (17th ed.) Citation

Hamburger Sternwarte and Warner and Swasey Observatory. Luminous Stars in the Northern Milky Way. Hamburg-Bergedorf: Hamburger Sternwarte.

MLA (9th ed.) Citation

Hamburger Sternwarte and Warner and Swasey Observatory. Luminous Stars in the Northern Milky Way. Hamburger Sternwarte.

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