APA aipamena

Roberts, P. (1967). Modern grammer. Harcourt Brace Jovanovich.

Chicago Style aipamena

Roberts, Paul. Modern Grammer. Harcourt Brace Jovanovich, 1967.

MLA aipamena

Roberts, Paul. Modern Grammer. Harcourt Brace Jovanovich, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.