Heel, A. C. S. v., & Velzel, C. H. F. (1968). What is light? Weidenfeld & Nicolson.
Chicago Edition CitationHeel, A. C. S. van, and C. H. F. Velzel. What Is Light? London: Weidenfeld & Nicolson, 1968.
MLA引文Heel, A. C. S. van, and C. H. F. Velzel. What Is Light? Weidenfeld & Nicolson, 1968.
警告:這些引文格式不一定是100%准確.