Interdisciplinary Communications Program, Conference on Origins of Life, 3d, Pacific Palisades, Calif, & Margulis, L. (1973). Planetary astronomy: Proceedings of the third conference on 'Origins of life'. Springer-Verlag.
Dyfyniad Arddull ChicagoInterdisciplinary Communications Program, 3d Conference on Origins of Life, and Lynn Margulis. Planetary Astronomy: Proceedings of the Third Conference on 'Origins of Life'. New York: Springer-Verlag, 1973.
Dyfyniad MLAInterdisciplinary Communications Program, et al. Planetary Astronomy: Proceedings of the Third Conference on 'Origins of Life'. Springer-Verlag, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.