(1986). The science and technology resources of West Germany: A comparison with the United States. Washington: National Science Foundation.
استشهاد بنمط شيكاغوThe Science and Technology Resources of West Germany: A Comparison With the United States. Washington: National Science Foundation, 1986.
MLA استشهادThe Science and Technology Resources of West Germany: A Comparison With the United States. Washington: National Science Foundation, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.