Keitz, H. A. E. (1971). Light calculations and measurements : an introduction to the system of quantities and units in light technology and to photometry / by H.A.E. Keitz: An introduction to the system of quantities and units in light technology and to photometry (2nd ed.). Macmillan.
Chicago Style (17th ed.) CitationKeitz, H. A. E. Light Calculations and Measurements : An Introduction to the System of Quantities and Units in Light Technology and to Photometry / by H.A.E. Keitz: An Introduction to the System of Quantities and Units in Light Technology and to Photometry. 2nd ed. Macmillan, 1971.
MLA (9th ed.) CitationKeitz, H. A. E. Light Calculations and Measurements : An Introduction to the System of Quantities and Units in Light Technology and to Photometry / by H.A.E. Keitz: An Introduction to the System of Quantities and Units in Light Technology and to Photometry. 2nd ed. Macmillan, 1971.