Polakowski, N. H., & Ripling, E. J. (1966). Strength and structure of engineering materials. Englewood Cliffs, NJ: Prentice-Hall.
Παραπομπή Chicago StylePolakowski, N. H., and E. J. Ripling. Strength and Structure of Engineering Materials. Englewood Cliffs, NJ: Prentice-Hall, 1966.
Παραπομπή MLAPolakowski, N. H., and E. J. Ripling. Strength and Structure of Engineering Materials. Englewood Cliffs, NJ: Prentice-Hall, 1966.
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