APA (7th ed.) Citation

Adam Matthew Digital (Firm). (2018). ["Pennsylvania" flag pin]. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Adam Matthew Digital (Firm). ["Pennsylvania" Flag Pin]. Marlborough, Wiltshire: Adam Matthew Digital, 2018.

MLA (9th ed.) Citation

Adam Matthew Digital (Firm). ["Pennsylvania" Flag Pin]. Adam Matthew Digital, 2018.

Warning: These citations may not always be 100% accurate.