APA (7th ed.) Citation

Karwatka, D. The first practical electron microscope. Tech directions.

Chicago Style (17th ed.) Citation

Karwatka, Dennis. "The First Practical Electron Microscope." Tech Directions .

MLA (9th ed.) Citation

Karwatka, Dennis. "The First Practical Electron Microscope." Tech Directions, .

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