APA (7th ed.) Citation

Arponen, J. (1970). Positron annihilation and the positron-electron many-body system.

Chicago Style (17th ed.) Citation

Arponen, Jouko. Positron Annihilation and the Positron-electron Many-body System. Helsinki, 1970.

MLA (9th ed.) Citation

Arponen, Jouko. Positron Annihilation and the Positron-electron Many-body System. 1970.

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