Style de citation APA (7e éd.)

Hooghiemstra, H., Agwu, C. O. C., & Beug, H. (1986). Pollen analysis of surface sediments off northwest Africa. PANGAEA.

Style de citation Chicago (17e éd.)

Hooghiemstra, Henry, Chiori O C. Agwu, et Hans-Jürgen Beug. Pollen Analysis of Surface Sediments off Northwest Africa. PANGAEA, 1986.

Style de citation MLA (9e éd.)

Hooghiemstra, Henry, et al. Pollen Analysis of Surface Sediments off Northwest Africa. PANGAEA, 1986.