(1990). Palaeontology and biostratigraphy (micromammals) of the continental Oligocene-Miocene deposits of the North-Central Ebro Basin (Huesca, Spain). Nationaal Natuurhistorisch Museum.
Chicago-Zitierstil (17. Ausg.)Palaeontology and Biostratigraphy (micromammals) of the Continental Oligocene-Miocene Deposits of the North-Central Ebro Basin (Huesca, Spain). Leiden: Nationaal Natuurhistorisch Museum, 1990.
MLA-Zitierstil (9. Ausg.)Palaeontology and Biostratigraphy (micromammals) of the Continental Oligocene-Miocene Deposits of the North-Central Ebro Basin (Huesca, Spain). Nationaal Natuurhistorisch Museum, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.