Cita APA

Weis, D., Kieffer, B., Hanano, D., Silva, I., Barling, J., Pretorius, W., . . . Mattielli, N. (2007). Hf isotope compositions of U.S. Geological survey reference materials.

Citación estilo Chicago

Weis, D., B. Kieffer, D. Hanano, I. Silva, J. Barling, W. Pretorius, C. Maerschalk, and N. Mattielli. Hf Isotope Compositions of U.S. Geological Survey Reference Materials. 2007.

Cita MLA

Weis, D., et al. Hf Isotope Compositions of U.S. Geological Survey Reference Materials. 2007.