Ballet sisters :
the duckling and the swan /
by Jan Ormerod.
APA Citation
Ormerod, J. (2007). Ballet sisters: the duckling and the swan. New York: Scholastic.
MLA Citation
Ormerod, Jan. Ballet Sisters: the Duckling And the Swan. New York: Scholastic, 2007.
Warning: These citations may not always be complete (especially for serials).