APA استشهاد

Notholt, A. J. G., & Jarvis, I. (1990). Phosphorite reseatrc and development. Geological Society.

استشهاد بنمط شيكاغو

Notholt, A J G., و I. Jarvis. Phosphorite Reseatrc and Development. London: Geological Society, 1990.

MLA استشهاد

Notholt, A J G., و I. Jarvis. Phosphorite Reseatrc and Development. Geological Society, 1990.