Cita APA (7th ed.)

Basler, O., & Schulz, H. (1974). L - P. de Gruyter.

Cita Chicago (17th ed.)

Basler, Otto, i Hans Schulz. L - P. Berlin [u.a.]: de Gruyter, 1974.

Cita MLA (8th ed.)

Basler, Otto, i Hans Schulz. L - P. de Gruyter, 1974.