APA (7th ed.) Citation

Penning, F. M. (1957). Electrical discharges in gases / by F.M. Penning. Philips' Technical Library.

Chicago Style (17th ed.) Citation

Penning, F. M. Electrical Discharges in Gases / by F.M. Penning. Philips' Technical Library, 1957.

MLA (9th ed.) Citation

Penning, F. M. Electrical Discharges in Gases / by F.M. Penning. Philips' Technical Library, 1957.

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