APA Citation

Ahlfeld, F. (1930). Dolmen in Bolivien. [s.l.]: [s.n.].

Chicago Style Citation

Ahlfeld, Friedrich. Dolmen in Bolivien. [s.l.]: [s.n.], 1930.

MLA Citation

Ahlfeld, Friedrich. Dolmen in Bolivien. [s.l.]: [s.n.], 1930.

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