A: No. SciELO is for scientific articles, not textbooks. ResearchGate is for research papers. You might find a chapter that a professor uploaded, but not the entire book.
The book by Viktor Leinz and Sérgio Estanislau do Amaral is a foundational text for earth sciences in Brazil, widely used by students and professionals. While it has been published in many editions (reaching at least its 14th edition in 2003), the "9" in your query likely refers to a specific printing or edition often sought for its comprehensive classic content. Availability and Download Guide geologia geral viktor leinz pdf download 9