Efficiencies of Ionization of Helium and Mercury by Electron Impact at High Voltages, a Thesis Submitted to the Faculty of the ... University of Minnesota by John William Liska ... for the Degree of Doctor of Philosophy ... 1934
The Development of a Systematic Process for Enhancing the Awareness of the Potential for Indoor Air Pollution in Schools
What Should be the Foreign Aid Policy of the United States? A Collection of Excerpts and a Bibliography Relating to the National High School Debate Topic, 1966-1967. Pursuant to Public Law 88-246 Compiled by the Legislative Reference Service Library of Congress