Cowan, H. J. (1958). Time and its measurements: From the stone age to the nuclear age.
Chicago Edition CitationCowan, Harrison J. Time and Its Measurements: From the Stone Age to the Nuclear Age. 1958.
MLA Edition CitationCowan, Harrison J. Time and Its Measurements: From the Stone Age to the Nuclear Age. 1958.
Warning: These citations may not always be 100% accurate.