2 द्वारा ईबुक Bradley D. Volkerts
Bradley D Volkerts: Yttrium
Yttrium is a silvery-metallic transition metal chemically similar to the lanthanoids and has historically been classified as a rare earth element. The most important use of yttrium is in making …
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DRM
€304.79
Prathamesh Gorawala & Srushti Mandhatri: Agricultural Research Updates. Volume 21
In Chapter One, Gerhard Gramss and Klaus-Dieter Voigt study the theory that production of high-productivity grain crops and their locally acclimatised land strains must be stretched to low-value …
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€366.40
