Giants.
Giants from the past; the age of mammals Photos by Joseph H. Bailey. - Washington, D.C. National Geographic Society, 1983. - 104p illus.
0870444298
Mammals--fossil.
Extinct animals.
Giants from the past; the age of mammals Photos by Joseph H. Bailey. - Washington, D.C. National Geographic Society, 1983. - 104p illus.
0870444298
Mammals--fossil.
Extinct animals.