Cita APA (7a ed.)

Perera, M. P., & Abeyratne, F. (1978). The citronella industry in the Hambantota District. Agrarian Research & Training Institute.

Cita Chicago Style (17a ed.)

Perera, M. P., y Fredrick Abeyratne. The Citronella Industry in the Hambantota District. Colombo: Agrarian Research & Training Institute, 1978.

Cita MLA (8a ed.)

Perera, M. P., y Fredrick Abeyratne. The Citronella Industry in the Hambantota District. Agrarian Research & Training Institute, 1978.