Chicken and egg /
Christine Back and Jens Olesen ; photographs by Bo Jarner.
- Morristown, N.J. : S. Burdett Co., 1986, c1984.
- 24 p. : ill. (some col.) ; 22 cm.
- Stopwatch books .
Includes index. Translation of: Der er en kylling i
Photographs, drawings, and text on two different levels of difficulty follow the development of a chick embryo from the fertilization and laying of the egg to the time the chick hatches.