Não informado. (1922). Commentationes physico-mathematicae. Finnish Society of Sciences and Letters.
Style de citation Chicago (17e éd.)Não informado. Commentationes Physico-mathematicae. Helsinki: Finnish Society of Sciences and Letters, 1922.
Style de citation MLA (8e éd.)Não informado. Commentationes Physico-mathematicae. Finnish Society of Sciences and Letters, 1922.
Attention : ces citations peuvent ne pas être correctes à 100%.