Cita APA (7a ed.)

Siegel, D. A. (2003). Ocean Primary Productivity at OPPWG_0348. PANGAEA.

Cita Chicago Style (17a ed.)

Siegel, David A. Ocean Primary Productivity at OPPWG_0348. PANGAEA, 2003.

Cita MLA (9a ed.)

Siegel, David A. Ocean Primary Productivity at OPPWG_0348. PANGAEA, 2003.