MLA

Foken, Thomas. Energy and Matter Fluxes of a Spruce Forest Ecosystem. Springer International Publishing, 2017.

APA

Foken, T. (2017). Energy and Matter Fluxes of a Spruce Forest Ecosystem. Springer International Publishing.

Chicago

Foken, Thomas Energy and Matter Fluxes of a Spruce Forest Ecosystem. : Springer International Publishing, 2017.