Williamson, R. E. (1968). Calculus of vector functions (2nd ed.). Prentice-Hall.
Chicago-čujuhus (17. p.)Williamson, Richard E. Calculus of Vector Functions. 2nd ed. New Jersey: Prentice-Hall, 1968.
MLA-čujuhus (9. p.)Williamson, Richard E. Calculus of Vector Functions. 2nd ed. Prentice-Hall, 1968.
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