Frederick H. Steen & Donald H. Ballou.
Analytic geometry., 2nd ed.
R568955. Analytic geometry. By Frederick H. Steen & Donald H. Ballou. 2nd ed. © 11Dec46; A10501. Frederick H. Steen & Donald H. Ballou (A); 28Jan74; R568955.
Frederick H. Steen & Donald H. Ballou|A