Cita APA (7th ed.)

Friederichs, H. F. (1975). Genealogie-Genetik-Gesellschaft.

Cita Chicago (17th ed.)

Friederichs, Heinz Friedrich. Genealogie-Genetik-Gesellschaft. Frankfurt [u.a.], 1975.

Cita MLA (8th ed.)

Friederichs, Heinz Friedrich. Genealogie-Genetik-Gesellschaft. 1975.