Spotts, M. F. (1961). Design of machine elements (3a. ed.). Prentice-Hall.
Chicago-čujuhus (17. p.)Spotts, Merhyle Franklin. Design of Machine Elements. 3a. ed. Englewood Cliffs: Prentice-Hall, 1961.
MLA-čujuhus (9. p.)Spotts, Merhyle Franklin. Design of Machine Elements. 3a. ed. Prentice-Hall, 1961.
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