Bijl, H. J. v. D. (1920). The therminic vacuum tu be and its applications. New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleBijl, H. J. van Der. The Therminic Vacuum Tu Be and Its Applications. New York: McGraw-Hill Book Company, 1920.
Παραπομπή MLABijl, H. J. van Der. The Therminic Vacuum Tu Be and Its Applications. New York: McGraw-Hill Book Company, 1920.
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