Bopp, R. F., Jackson, K. W., Parekh, P. P., & Webber, J. S. Reconstruction of a century of airborne asbestos concentrations.
استشهاد بنمط شيكاغوBopp, Richard F., Kenneth W. Jackson, Pravin P. Parekh, و James S. Webber. Reconstruction of a Century of Airborne Asbestos Concentrations.
MLA استشهادBopp, Richard F., Kenneth W. Jackson, Pravin P. Parekh, و James S. Webber. Reconstruction of a Century of Airborne Asbestos Concentrations.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.