McMullan, Kate.

Pearl and Wagner : two good friends / Two good friends. by Kate McMullen ; pictures by R. W. Alley. - New York : Penguin Young Readers, 2011. - 48 p. : col. ill. ; 23 cm. - Penguin young readers. . - Penguin readers. Level 3. .

"First published in 2003 by Dial Books for Young Readers"--p. before t.p.

Pearl and Wagner, a rabbit and a mouse, work together to build a robot for their science project.

ISBN: 9780448456904 (pbk.) 0448456907 (pbk.)

Subjects--Topical Terms:
Friendship--Fiction.
Mice--Fiction.
Rabbits--Fiction.
Robots--Fiction.
Science projects--Fiction.