APA
berenstain s., berenstain j., . (1997). the berenstain bears. new york: random house.
Chicago
berenstain stan, berenstain jan, . 1997. the berenstain bears. new york: random house.
Harvard
berenstain s., berenstain j., . (1997). the berenstain bears. new york: random house.
MLA
berenstain stan, berenstain jan, . the berenstain bears. new york: random house. 1997.
