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APA citation style - 7th edition


Note: The URL is optional, however, it should be included if it is available.

Erb, R., Warmouth, C., Long, V. R., & VanHoutin, L. A. (2018). Football helmet shell. U.S. Patent and Trademark Office.

Note: The in-text citation for the above patent would be:

(Erb et al., 2018)

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