APA (7th ed.) Citation

Karwatka, D. Hans Christian Oersted discovers electromagnetism. IN Technology's Past. Tech directions.

Chicago Style (17th ed.) Citation

Karwatka, Dennis. "Hans Christian Oersted Discovers Electromagnetism. IN Technology's Past." Tech Directions .

MLA (9th ed.) Citation

Karwatka, Dennis. "Hans Christian Oersted Discovers Electromagnetism. IN Technology's Past." Tech Directions, .

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