Trích dẫn APA

Baby,P.K. (2011). Measuring Value of Air Quality: An Economic Approach to Keralas Environment. Director,DPRP CUSAT.

Trích dẫn kiểu Chicago

Baby,P.K. Measuring Value of Air Quality: An Economic Approach to Keralas Environment. Cochin: Director,DPRP CUSAT, 2011.

Trích dẫn MLA

Baby,P.K. Measuring Value of Air Quality: An Economic Approach to Keralas Environment. Director,DPRP CUSAT, 2011.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.