Geidel, G. (1989). Amsterdam. Brockhaus.
Cita Chicago (17th ed.)Geidel, Günter. Amsterdam. Leipzig: Brockhaus, 1989.
Cita MLA (8th ed.)Geidel, Günter. Amsterdam. Brockhaus, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.
Geidel, G. (1989). Amsterdam. Brockhaus.
Cita Chicago (17th ed.)Geidel, Günter. Amsterdam. Leipzig: Brockhaus, 1989.
Cita MLA (8th ed.)Geidel, Günter. Amsterdam. Brockhaus, 1989.