Humphrey, D., & Topping, J. (1961). A shorter intermediate mechanics (2nd ed.). London: Longmans.
Παραπομπή Chicago StyleHumphrey, D., and J. Topping. A Shorter Intermediate Mechanics. 2nd ed. London: Longmans, 1961.
Παραπομπή MLAHumphrey, D., and J. Topping. A Shorter Intermediate Mechanics. 2nd ed. London: Longmans, 1961.
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