Cita APA (7a ed.)

Pride, C., Thunell, R. C., Sigman, D. M., Keigwin, L. D., Altabet, M. A., & Tappa, E. (1999). Opal content of sediment core GGC-55. PANGAEA.

Cita Chicago Style (17a ed.)

Pride, Carol, Robert C. Thunell, Daniel M. Sigman, Lloyd D. Keigwin, Mark A. Altabet, y Eric Tappa. Opal Content of Sediment Core GGC-55. PANGAEA, 1999.

Cita MLA (9a ed.)

Pride, Carol, et al. Opal Content of Sediment Core GGC-55. PANGAEA, 1999.