APA (7th ed.) Citation

Nettis, J., & Burt, N. (1964). Philadelphia discovered. Greater Philadelphia Magazine.

Chicago Style (17th ed.) Citation

Nettis, Joseph, and Nathaniel Burt. Philadelphia Discovered. Philadelphia: Greater Philadelphia Magazine, 1964.

MLA (9th ed.) Citation

Nettis, Joseph, and Nathaniel Burt. Philadelphia Discovered. Greater Philadelphia Magazine, 1964.

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