Citazione APA

Johnson, E. A., & Martin, Y. E. A biogeoscience approach to ecosystems.

Stile di citazione Chicago

Johnson, E. A., e Yvonne E. Martin. A Biogeoscience Approach to Ecosystems.

Citazione MLA

Johnson, E. A., e Yvonne E. Martin. A Biogeoscience Approach to Ecosystems.