WILLIAMSON, R. E. (1972). Calculus of vector functions.
Cita Chicago (17th ed.)WILLIAMSON, Richard E. Calculus of Vector Functions. Englewood Cliffs, 1972.
Cita MLA (9th ed.)WILLIAMSON, Richard E. Calculus of Vector Functions. 1972.
Atenció: Aquestes cites poden no estar 100% correctes.