Purdom, P. . . . . . . . . W. (1971). Environmental health. Academic Press, a subsidiary of Harcourt Brace Jovanovich.
Chicagoスタイル(17版)引用形式Purdom, P Walton. Environmental Health. New York: Academic Press, a subsidiary of Harcourt Brace Jovanovich, 1971.
MLA(9版)引用形式Purdom, P Walton. Environmental Health. Academic Press, a subsidiary of Harcourt Brace Jovanovich, 1971.
警告: この引用は必ずしも正確ではありません.