Newton, R. G. (1969). Some further observations on the weathering crusts of ancient glass. Sheffield: Society of Glass Technology.
استشهاد بنمط شيكاغوNewton, Roy G. Some Further Observations On the Weathering Crusts of Ancient Glass. Sheffield: Society of Glass Technology, 1969.
MLA استشهادNewton, Roy G. Some Further Observations On the Weathering Crusts of Ancient Glass. Sheffield: Society of Glass Technology, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.