Citação norma APA

Roos, G. (1935). Comparative researches on the variation of the constituents of coal of one seam from south Limburg: The Netherlands. Van Aelst Bros.

Citação norma Chicago

Roos, Gerrit. Comparative Researches on the Variation of the Constituents of Coal of One Seam from South Limburg: The Netherlands. Maastricht: Van Aelst Bros, 1935.

Citação norma MLA

Roos, Gerrit. Comparative Researches on the Variation of the Constituents of Coal of One Seam from South Limburg: The Netherlands. Van Aelst Bros, 1935.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.