APA aipamena

Douglass, A. E. (1933). II. Evidences of Cycles in Tree Ring Records.

Chicago Style aipamena

Douglass, A. E. II. Evidences of Cycles in Tree Ring Records. 1933.

MLA aipamena

Douglass, A. E. II. Evidences of Cycles in Tree Ring Records. 1933.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.