Friis, R. H. (2012). Essentials of environmental health (2nd ed.). Jones & Bartlett Learning.
Chicagoスタイル(17版)引用形式Friis, Robert H. Essentials of Environmental Health. 2nd ed. Sudbury, MA: Jones & Bartlett Learning, 2012.
MLA(8版)引用形式Friis, Robert H. Essentials of Environmental Health. 2nd ed. Jones & Bartlett Learning, 2012.
警告: この引用は必ずしも正確ではありません.