Philippines. Department of Environment and Natural Resources & Local Government Development Foundation. (1996). Compilation of DENR circulars, policies and regulations on the environment. Printed by Local Government Development Foundation.
Chicago Style (17. basım) AtıfPhilippines. Department of Environment and Natural Resources ve Local Government Development Foundation. Compilation of DENR Circulars, Policies and Regulations on the Environment. Pasay City: Printed by Local Government Development Foundation, 1996.
MLA (9th ed.) AtıfPhilippines. Department of Environment and Natural Resources ve Local Government Development Foundation. Compilation of DENR Circulars, Policies and Regulations on the Environment. Printed by Local Government Development Foundation, 1996.