APA
Thorpe E., Thorpe S., . (2009). Concise General Knowledge Manual 2009. New Delhi: Pearson.
Chicago
Thorpe Edgar, Thorpe Showick, . 2009. Concise General Knowledge Manual 2009. New Delhi: Pearson.
Harvard
Thorpe E., Thorpe S., . (2009). Concise General Knowledge Manual 2009. New Delhi: Pearson.
MLA
Thorpe Edgar, Thorpe Showick, . Concise General Knowledge Manual 2009. New Delhi: Pearson. 2009.