The Praeger handbook of environmental health / edited by Robert H. FriisRobert H. Friis · First published 2012Open the Tome
Occupational Health and Safety for the 21st CenturyRobert H. Friis · First published 2015Open the Tome
Epidemiology for public health practice, fourth editionRobert H. Friis · First published 2011Open the Tome
Essentials of Environmental Health 2nd Edition Essential Public HealthRobert H. Friis · First published 2011Open the Tome
Introductory biostatistics for the health sciencesMichael R. Chernick, Robert H. Friis · First published 2003Open the Tome
Epidemiology for public health practiceRobert H. Friis, Robert H., Ph.D. Friis, Thomas A., Ph.D. Sellers · First published 1996Open the Tome
