Não informado. (1971). Environmental Health Review. Canadian Institute of Public Health Inspectors.
Chicagoスタイル(17版)引用形式Não informado. Environmental Health Review. Ontario, Canada: Canadian Institute of Public Health Inspectors, 1971.
MLA(8版)引用形式Não informado. Environmental Health Review. Canadian Institute of Public Health Inspectors, 1971.
警告: この引用は必ずしも正確ではありません.