Theory of equations
by H. W. Turnbull.
5th. rev.
Edinburgh : Oliver and Boyd, 1952.
xii, 162 págs. ; 19 cm.
Serie: University mathematical texts
"Founded on the lecture course given in the University of St. Andrews to students reading for an ordinary degree in mathematics and to first-year honours students."—Pref. de la 1a ed.
"First edition 1939.".
"Suggestions for further reading": p. 159.