APA aipamena

Bullock, T., & Timothy Bullock. (2007). The. Columbus, Ohio: SRA/McGraw-Hill.

Chicago Style aipamena

Bullock, Timothy, và Timothy Bullock. The. Columbus, Ohio: SRA/McGraw-Hill, 2007.

MLA aipamena

Bullock, Timothy, và Timothy Bullock. The. Columbus, Ohio: SRA/McGraw-Hill, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.