Weille, J. D. (1966). Quantification of road user savings. Johns Hopkins Press.
Chicago-čujuhus (17. p.)Weille, Jan De. Quantification of Road User Savings. Washington: Johns Hopkins Press, 1966.
MLA-čujuhus (9. p.)Weille, Jan De. Quantification of Road User Savings. Johns Hopkins Press, 1966.
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