Steele,Philip professional D BASE IV™1.1 and SQL Programming / by philip Steele& Robert Heydt - NewYork: John wiley&Sons, 1990. - Xiv,528p. ISBN: 978047250851 Subjects--Topical Terms: Computer ScienceDatabase managementDbase IV1.1SQL Programming Dewey Class. No.: 001.6424 / STE/P