Cita APA (7a ed.)

Firmenich-Richartz, E. (1916). Die Brüder Boisserée: Eduard Firmenich-Richartz. Diederichs.

Cita Chicago Style (17a ed.)

Firmenich-Richartz, Eduard. Die Brüder Boisserée: Eduard Firmenich-Richartz. Jena: Diederichs, 1916.

Cita MLA (8a ed.)

Firmenich-Richartz, Eduard. Die Brüder Boisserée: Eduard Firmenich-Richartz. Diederichs, 1916.