SPIEGEL M. R. (1959). THEORY AND PROBLEM OF VECTOR ANALYSIS. MC GRAW HILL.
Cita Chicago (17th ed.)SPIEGEL M. R. THEORY AND PROBLEM OF VECTOR ANALYSIS. NEW YORK: MC GRAW HILL, 1959.
Cita MLA (9th ed.)SPIEGEL M. R. THEORY AND PROBLEM OF VECTOR ANALYSIS. MC GRAW HILL, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.