Niemann, L. (1963). Technical arithmetic for mechanics manual and collection of problems for mechanics, workshop of fitters and similar trades. Wiley Eastern.
استشهاد بنمط شيكاغوNiemann, Lowisch. Technical Arithmetic for Mechanics Manual and Collection of Problems for Mechanics, Workshop of Fitters and Similar Trades. New Delhi: Wiley Eastern, 1963.
MLA استشهادNiemann, Lowisch. Technical Arithmetic for Mechanics Manual and Collection of Problems for Mechanics, Workshop of Fitters and Similar Trades. Wiley Eastern, 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.