Schröder, W. (1999). On the existence of solar variations in the 16th to 18th centuries. Universidad Nacional Autónoma de México.
Citazione stile Chigago Style (17a edizione)Schröder, W. On the Existence of Solar Variations in the 16th to 18th Centuries. Universidad Nacional Autónoma de México, 1999.
Citatione MLA (9a ed.)Schröder, W. On the Existence of Solar Variations in the 16th to 18th Centuries. Universidad Nacional Autónoma de México, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.