APA aipamena

Harington, C. R. (1992). The year without a summer? Ottawa.

Chicago Style aipamena

Harington, Charles Richard. The Year Without a Summer? Ottawa, 1992.

MLA aipamena

Harington, Charles Richard. The Year Without a Summer? Ottawa, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.