SING, C. (1978). Industrial Organisation Estimation And Project Planning / C.k. Singh And M.i Khan. Standard Publishers Distributors.
Chicago-viite (17. p.)SING, C.K. Industrial Organisation Estimation And Project Planning / C.k. Singh And M.i Khan. Standard Publishers Distributors, 1978.
MLA-viite (8. p.)SING, C.K. Industrial Organisation Estimation And Project Planning / C.k. Singh And M.i Khan. Standard Publishers Distributors, 1978.
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