Bibliografía (17 obras)
Wolves Return
2017
Skydiver
2014
Hurricane!
2008
Fire
2006
Fire!
Amber
2004
When the Giant Stirred
2002
What About Ladybugs? (Sierra Club Books (Sierra))
2001
Flying Lessons (First Flight Books Level Two)
1999
Flying Lessons (First Flight
What About Ladybugs?
1998
Sea Otter Inlet
1997
What about ladybugs?
1995
Ladybug garden
Wolf Island (Animals)
1994
Wolf Island
1989
Osteology and phylogeny of the family Congrodadidae (perciformes : pisces)
1983
