Look! :
the ultimate spot-the-difference book /
illustrated by April Wilson ; nature notes by A. J. Wood.
APA Citation
Wood, A. J., Wilson, A. (1990). Look!: the ultimate spot-the-difference book. New York: Dial Books for Young Readers.
MLA Citation
Wood, A. J., 1960-, and April Wilson. Look!: the Ultimate Spot-the-difference Book. New York: Dial Books for Young Readers, 1990.
Warning: These citations may not always be complete (especially for serials).