Παραπομπή APA

Pearson,Charles, & Anthony,Pryor. Environment: North and south. John Wiley & Sons.

Παραπομπή Chicago Style

Pearson,Charles, και Anthony,Pryor. Environment: North and South. New York: John Wiley & Sons.

Παραπομπή MLA

Pearson,Charles, και Anthony,Pryor. Environment: North and South. John Wiley & Sons.