APA
sobol r., . (2004). AN Elephant in the back yard. new york: dutton children's books.
Chicago
sobol richard, . 2004. AN Elephant in the back yard. new york: dutton children's books.
Harvard
sobol r., . (2004). AN Elephant in the back yard. new york: dutton children's books.
MLA
sobol richard, . AN Elephant in the back yard. new york: dutton children's books. 2004.
