Essentials of environmental health /
Friis, Robert H.
Essentials of environmental health / Robert H. Friis. - Sudbury, Mass. : Jones and Bartlett, c2007. - xxvi, 390 p. : ill., maps ; 28 cm.
Includes bibliographical references and index.
0763747629
Environmental health.
Essentials of environmental health / Robert H. Friis. - Sudbury, Mass. : Jones and Bartlett, c2007. - xxvi, 390 p. : ill., maps ; 28 cm.
Includes bibliographical references and index.
0763747629
Environmental health.