Department of Environment and Natural Resources. (1997). Sustainable livelihood options for the Philippines: An information kit. Coastal ecosystem. Department of Environment and Natural Resources.
Chicago Style (17. basım) AtıfDepartment of Environment and Natural Resources. Sustainable Livelihood Options for the Philippines: An Information Kit. Coastal Ecosystem. Diliman, Q.C: Department of Environment and Natural Resources, 1997.
MLA (9th ed.) AtıfDepartment of Environment and Natural Resources. Sustainable Livelihood Options for the Philippines: An Information Kit. Coastal Ecosystem. Department of Environment and Natural Resources, 1997.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..