Antzeko izenburuak: Journal of Cave & Karst Studies
- Journal of cave and karst studies: the National Speleological Society bulletin [J Caves Karst Stud] NLMUID: 101623572
- Guidelines for cave and karst protection /
- Speleogenesis & Evolution of Karst Aquifers
- Caves : a wonderful underground /
- Caves : a wonderful underground /
- Karst y cuevas : la cuarta dimensión de la naturaleza /