APA (7th ed.) Zitazioa

BERNATZKY, A. Tree ecology and preservation: BERNATZKY, Aloys. Elsevier.

Chicago Style (17th ed.) Zitazioa

BERNATZKY, Aloys. Tree Ecology and Preservation: BERNATZKY, Aloys. c1978: Elsevier.

MLA (9th ed.) Zitazioa

BERNATZKY, Aloys. Tree Ecology and Preservation: BERNATZKY, Aloys. Elsevier.