Kepler, J., Aiton, E. J., Duncan, A. M., Field, J. V., Duncan, A. M., & Field, J. V. (1997). The harmony of the world. [Philadelphia, Pa.]: American Philosophical Society.
Παραπομπή Chicago StyleKepler, Johannes, E. J. Aiton, Alistair Matheson Duncan, Judith Veronica Field, A. M. Duncan, and J. V. Field. The Harmony of the World. [Philadelphia, Pa.]: American Philosophical Society, 1997.
Παραπομπή MLAKepler, Johannes, et al. The Harmony of the World. [Philadelphia, Pa.]: American Philosophical Society, 1997.
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