Calcutta Metropolitan Development Authority. Directorate of Planning and Development. (1981). Sewerage and drainage programmme of C.M.D.A.: An evaluative study. Directorate of Planning and Development, Calcutta Metropolitan Development Authority.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Calcutta Metropolitan Development Authority. Directorate of Planning and Development. Sewerage and Drainage Programmme of C.M.D.A.: An Evaluative Study. [Calcutta]: Directorate of Planning and Development, Calcutta Metropolitan Development Authority, 1981.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Calcutta Metropolitan Development Authority. Directorate of Planning and Development. Sewerage and Drainage Programmme of C.M.D.A.: An Evaluative Study. Directorate of Planning and Development, Calcutta Metropolitan Development Authority, 1981.