1. National Marine Debris Monitoring Program: citizen science observations from 1997–2007
- Author(s):
- Ribic, Christine A.; Sheavly, Seba B.; Rugg, David J.
2. Fledging times of grassland birds (2nd Edition)
- Author(s):
- Ribic, Christine A.; Pietz, Pamela J.; Koper, Nicola; Ng, Christoph S.
3. Fledging times of grassland birds
- Author(s):
- Ribic, Christine A.; Pietz, Pamela J.; Koper, Nicola; Ng, Christoph S.