APA (7th ed.) Citation

Halfmann, H. (1997). Gallienus (253-268).

Chicago Style (17th ed.) Citation

Halfmann, Helmut. Gallienus (253-268). 1997.

MLA (9th ed.) Citation

Halfmann, Helmut. Gallienus (253-268). 1997.

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