Gaya APA

Huttl, P, D, D, H, C, R. (2010). Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences . : GFZ.

Gaya MLA

Huttl, Professor, Dr., Dr., H., C., Reinhard. "Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences". : GFZ, 2010. Buku.