APA aipamena

ROBINSON & KATYMAN. (1997). CRACKING THE GRE. RANDOM HOUSE.

Chicago Style aipamena

ROBINSON & KATYMAN. CRACKING THE GRE. NEW-YORK: RANDOM HOUSE, 1997.

MLA aipamena

ROBINSON & KATYMAN. CRACKING THE GRE. RANDOM HOUSE, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.