Cita APA (7th ed.)

Hahn, W., & Fritzsch, E. (1970). Dresden (o.A.). Brockhaus.

Cita Chicago (17th ed.)

Hahn, Walter, i Erich Fritzsch. Dresden. o.A. Leipzig: Brockhaus, 1970.

Cita MLA (8th ed.)

Hahn, Walter, i Erich Fritzsch. Dresden. o.A. Brockhaus, 1970.