What's in that egg? : a book about life cycles /
What is in that egg?
by Becky Baines.
- Washington, D.C. : National Geographic, c2009.
- 27 p. : col. ill ; 20 x 22 cm.
"A Zigzag Book"--Cover p. [4]. "National Geographic Kids"--Cover.
An introduction to eggs that discusses the development of a chick embryo and describes the variety of egg shapes and colors.