Columbia subject headings:
Rosa, João Guimarães, 1908-1967--Criticism and interpretation.
Rosa, João Guimarães, 1908-1967. Magma.
Harvard subject headings:
Brazilian poetry--20th century--History and criticism.
Rosa, João Guimarães, 1908-1967. Magma
Princeton subject headings:
Rosa, João Guimarães, 1908-1967. Magma.