Cita APA (7a ed.)

Schenke, H. W., & Gauger, S. (2007). AWI Bathymetric Chart of the Gakkel Ridge, Sheet 9 (AWI BCGR-9) (Scale 1: 150,000). PANGAEA.

Cita Chicago Style (17a ed.)

Schenke, Hans Werner, y Steffen Gauger. AWI Bathymetric Chart of the Gakkel Ridge, Sheet 9 (AWI BCGR-9) (Scale 1: 150,000). PANGAEA, 2007.

Cita MLA (9a ed.)

Schenke, Hans Werner, y Steffen Gauger. AWI Bathymetric Chart of the Gakkel Ridge, Sheet 9 (AWI BCGR-9) (Scale 1: 150,000). PANGAEA, 2007.