Vol. s4-28, Issue 168, 1909December 01, 1909 EDT
New Method of Measuring Light Efficiency
New Method of Measuring Light Efficiency
C. C. Hutchins,
Hutchins, C. C. (1909). New method of measuring light efficiency. American Journal of Science, s4-28(168), 529–532. https://doi.org/10.2475/ajs.s4-28.168.529