Look again! :
the second ultimate spot-the-difference book /
illustrated by April Wilson ; nature notes by A.J. Wood.

APA Citation

Wilson, A., Wood, A. J. (1992). Look again!: the second ultimate spot-the-difference book. New York: Dial Books for Young Readers.

MLA Citation

Wilson, April, and A. J. Wood. Look Again!: the Second Ultimate Spot-the-difference Book. New York: Dial Books for Young Readers, 1992.

Warning: These citations may not always be complete (especially for serials).