APA aipamena

Spurr, S. H. (1963). Growth of Douglas fir in New Zealand. New Zealand Forest Service.

Chicago Style aipamena

Spurr, Stephen Hopkins. Growth of Douglas Fir in New Zealand. Wellington: New Zealand Forest Service, 1963.

MLA aipamena

Spurr, Stephen Hopkins. Growth of Douglas Fir in New Zealand. New Zealand Forest Service, 1963.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.