Open AccessThe Occurrence of Atmospheric Lead Resulting from Use of Colored Blackboard Crayons
Author(s) -
Harold W. Ruf,
William Z. Fluck
Publication year - 1939
Publication title -
american journal of public health and the nation's health
Language(s) - English
Resource type - Journals
eISSN - 2330-9679
pISSN - 0002-9572
DOI - 10.2105/ajph.29.10.1149
Subject(s) - colored , blackboard (design pattern) , lead (geology) , meteorology , geography , engineering , political science , geology , law , geomorphology , engineering drawing