Loopstra, B. O. (1958). X-ray and neutron diffraction investigation of calcium hypophosphite and phosphorous acid. Joint Establishment for Nuclear Energy Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Loopstra, Bert Onno. X-ray and Neutron Diffraction Investigation of Calcium Hypophosphite and Phosphorous Acid. Kjeller near Lillestrøm: Joint Establishment for Nuclear Energy Research, 1958.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Loopstra, Bert Onno. X-ray and Neutron Diffraction Investigation of Calcium Hypophosphite and Phosphorous Acid. Joint Establishment for Nuclear Energy Research, 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.