APA
Department of Agriculture, . (2011). පේර වගාව. Peradeniya: Department of Agriculture.
Chicago
Department of Agriculture, . 2011. පේර වගාව. Peradeniya: Department of Agriculture.
Harvard
Department of Agriculture, . (2011). පේර වගාව. Peradeniya: Department of Agriculture.
MLA
Department of Agriculture, . පේර වගාව. Peradeniya: Department of Agriculture. 2011.