Dobson, Ken. Holt science spectrum: a physical approach Ken Dobson, John Holman, Michael Roberts. - New York: Holt, Rinehart and Winston., 2001. - xx, 728 p.: ill. (col) 28 cm. For university students. Subjects--Personal Names: Holman, John.Roberts, Michael. Subjects--Topical Terms: Blind--Books and reading.