APA

Gregorich B., Boyer R., . (2001). Does It Belong?. USA: School Zone.

Chicago

Gregorich Barbara, Boyer Robin, . 2001. Does It Belong?. USA: School Zone.

Harvard

Gregorich B., Boyer R., . (2001). Does It Belong?. USA: School Zone.

MLA

Gregorich Barbara, Boyer Robin, . Does It Belong?. USA: School Zone. 2001.