Likens, G., & ...[et al.]. (1977). Biogeochemistry of a forested ecosystems. Springer.
Chicago Style aipamenaLikens, Gene, and ...[et al.]. Biogeochemistry of a Forested Ecosystems. New york: Springer, 1977.
MLA aipamenaLikens, Gene, and ...[et al.]. Biogeochemistry of a Forested Ecosystems. Springer, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.