Niemann, L. (1963). Technical arithmetic for mechanics manual and collection of problems for mechanics, workshop of fitters and similar trades. Wiley Eastern.
শিকাগো স্টাইলে সাইটেশনNiemann, Lowisch. Technical Arithmetic for Mechanics Manual and Collection of Problems for Mechanics, Workshop of Fitters and Similar Trades. New Delhi: Wiley Eastern, 1963.
এমএলএ সাইটেশনNiemann, Lowisch. Technical Arithmetic for Mechanics Manual and Collection of Problems for Mechanics, Workshop of Fitters and Similar Trades. Wiley Eastern, 1963.
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