APA aipamena

BHANOT , T. GRADED ENG. GRAMMAR - 7.

Chicago Style aipamena

BHANOT , T.R. GRADED ENG. GRAMMAR - 7.

MLA aipamena

BHANOT , T.R. GRADED ENG. GRAMMAR - 7.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.