India. Parliament. Committee on Public Undertakings. (1966). The Kerala Premo Pipe Factory, ltd., Trivandrum: Department of Public Health & Engineering, Government of Kerala. Lok Sabha Secretariat.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)India. Parliament. Committee on Public Undertakings. The Kerala Premo Pipe Factory, Ltd., Trivandrum: Department of Public Health & Engineering, Government of Kerala. New Delhi: Lok Sabha Secretariat, 1966.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)India. Parliament. Committee on Public Undertakings. The Kerala Premo Pipe Factory, Ltd., Trivandrum: Department of Public Health & Engineering, Government of Kerala. Lok Sabha Secretariat, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.