Hirsch, Lewis. <br/><br/>
Understanding elementary algebra :  a course for college students / 
Lewis Hirsch, Arthur Goodman 
 - 2nd ed. 
 - New York :  West pub. comp.,  1990 
 - 215 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Subjects--Index Terms: </label>Toán học Đại số 
<br/><br/><label>Dewey Class. No.: </label>512.9  / HIR 1990