ARNY, T. T. S. (2020). Explorations: : an introduction to astronomy. McGraw Hill Education.
Citazione stile Chigago Style (17a edizione)ARNY, Thomas T. Schneider. Explorations: : An Introduction to Astronomy. McGraw Hill Education, 2020.
Citatione MLA (9a ed.)ARNY, Thomas T. Schneider. Explorations: : An Introduction to Astronomy. McGraw Hill Education, 2020.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.