(1997). Pia Fries.
Cita Chicago Style (17a ed.)Pia Fries. Freiburg [u.a.], 1997.
Cita MLA (8a ed.)Pia Fries. 1997.
Precaución: Estas citas no son 100% exactas.
(1997). Pia Fries.
Cita Chicago Style (17a ed.)Pia Fries. Freiburg [u.a.], 1997.
Cita MLA (8a ed.)Pia Fries. 1997.