Tombs, M. (2014). US Patent No. 8,706,430: Compensating for frequency change in flowmeters. United States Patent and Trademark Office.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Tombs, M. US Patent No. 8,706,430: Compensating for Frequency Change in Flowmeters. United States Patent and Trademark Office, 2014.
MLA -ийн эшлэл (9 дэх хэвлэлт)Tombs, M. US Patent No. 8,706,430: Compensating for Frequency Change in Flowmeters. United States Patent and Trademark Office, 2014.
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