(1992). New guidelines for pollution control officers'accreditation. DENR.
Chicagoスタイル(17版)引用形式New Guidelines for Pollution Control Officers'accreditation. Phils: DENR, 1992.
MLA(9版)引用形式New Guidelines for Pollution Control Officers'accreditation. DENR, 1992.
警告: この引用は必ずしも正確ではありません.