APA استشهاد

Likens, G., & ...[et al.]. (1977). Biogeochemistry of a forested ecosystems. Springer.

استشهاد بنمط شيكاغو

Likens, Gene, و ...[et al.]. Biogeochemistry of a Forested Ecosystems. New york: Springer, 1977.

MLA استشهاد

Likens, Gene, و ...[et al.]. Biogeochemistry of a Forested Ecosystems. Springer, 1977.