Schlosser, W., Schmidt-Kaler, T., & Milone, E. F. (1991). Challenges of astronomy: Hands on experiments for the sky and laboratory. New York: Springer-Verlag.
Παραπομπή Chicago StyleSchlosser, W., Th Schmidt-Kaler, and E. F. Milone. Challenges of Astronomy: Hands On Experiments for the Sky and Laboratory. New York: Springer-Verlag, 1991.
Παραπομπή MLASchlosser, W., Th Schmidt-Kaler, and E. F. Milone. Challenges of Astronomy: Hands On Experiments for the Sky and Laboratory. New York: Springer-Verlag, 1991.
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