Cita APA (7a ed.)

Pietzcker, E. (1896). Sang an Hela. [s.n..

Cita Chicago Style (17a ed.)

Pietzcker, Eduard. Sang an Hela. Danzig: [s.n., 1896.

Cita MLA (9a ed.)

Pietzcker, Eduard. Sang an Hela. [s.n., 1896.