APA引文

Tombs, M. (2014). US Patent No. 8,706,430: Compensating for frequency change in flowmeters. United States Patent and Trademark Office.

Chicago Style (17th ed.) Citation

Tombs, M. US Patent No. 8,706,430: Compensating for Frequency Change in Flowmeters. United States Patent and Trademark Office, 2014.

MLA引文

Tombs, M. US Patent No. 8,706,430: Compensating for Frequency Change in Flowmeters. United States Patent and Trademark Office, 2014.

警告：這些引文格式不一定是100％准確.