Ruetz, W. F., & Nather, J. (1987). Proceedings of the IUFRO working party on Breeding Strategy for Douglas-fir as an introduced species: Working party: S.2.02.05, Vienna, Austria, June 1985. Forstl. Bundesversuchsanst.
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Chicago Style (17th ed.) Zitazioa
Ruetz, W. F., eta Johann Nather. Proceedings of the IUFRO Working Party on Breeding Strategy for Douglas-fir as an Introduced Species: Working Party: S.2.02.05, Vienna, Austria, June 1985. Wien: Forstl. Bundesversuchsanst, 1987.
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MLA (9th ed.) Zitazioa
Ruetz, W. F., eta Johann Nather. Proceedings of the IUFRO Working Party on Breeding Strategy for Douglas-fir as an Introduced Species: Working Party: S.2.02.05, Vienna, Austria, June 1985. Forstl. Bundesversuchsanst, 1987.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.