APA (7th ed.) Citation

Lang, J. (1936). Die Hohlwelttheorie. Schirmer & Mahlau.

Chicago Style (17th ed.) Citation

Lang, Johannes. Die Hohlwelttheorie. Frankfurt a.M: Schirmer & Mahlau, 1936.

MLA (8th ed.) Citation

Lang, Johannes. Die Hohlwelttheorie. Schirmer & Mahlau, 1936.

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