Barbara L Harper Books
The Health Detective'S Handbook: A Guide To The Investigation Of Environmental Health Hazards By Nonprofessionals
By Michael J Scott, Johns Hopkins University Press, Marvin S. Legator, Professor Marvin S. Legator, Barbara L Harper
Edited By Marvin S. Legator, Barbara L. Harper, And Michael J. Scott. Includes Index. Bibliography: P. 241-247.
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