APA Citation

Strömgren, E., & Strömgren, B. (1933). Lehrbuch der Astronomie (1st ed. 1933.). Berlin, Heidelberg: Springer Berlin Heidelberg.

Chicago Style Citation

Strömgren, Elis, and Bengt Strömgren. Lehrbuch Der Astronomie. 1st ed. 1933. Berlin, Heidelberg: Springer Berlin Heidelberg, 1933.

MLA Citation

Strömgren, Elis, and Bengt Strömgren. Lehrbuch Der Astronomie. 1st ed. 1933. Berlin, Heidelberg: Springer Berlin Heidelberg, 1933.

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