APA (7th ed.) Citation

Bethesda Softworks (Firm). (2015). Fallout 4: The Commonwealth. [Bethesda Softworks?].

Chicago Style (17th ed.) Citation

Bethesda Softworks (Firm). Fallout 4: The Commonwealth. [Rockville, Maryland?]: [Bethesda Softworks?], 2015.

MLA (9th ed.) Citation

Bethesda Softworks (Firm). Fallout 4: The Commonwealth. [Bethesda Softworks?], 2015.

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