APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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