Incoming Resources
- National Geographic, Washington, D.C., c2005
- Feeding Minds Press, American Farm Bureau Foundation for Agriculture, Washington, D.C., 2019
- National Geographic Society, Washington, D.C., c1980
- The Society, Washington, D.C., c1988
- National Geographic, Washington, D.C., c2013
- National Geographic Society, Washington, D.C., 1986
- National Geographic, Washington, D.C., c2003
- National Geographic, Washington, D.C., 2013
- National Geographic, Washington, D.C., ©2009
- National Geographic, Washington, D.C., 2006
- National Geographic Society, Washington, D.C., c1982