While it certainly helps to know the language, especially if you become a professional historian in your topic, there are ways to find translated sources uses the main library catalog and worldcat.
This link opens in a new windowAs a starting point, conduct your searches in WorldCat or the Catalog and limit by language. You may find translated volumes or entire series (Ex)
Using the Subject Heading SOURCES or FACSIMILES or EARLY WORKS or MANUSCRIPTS you can find printed collections of translated primary sources.
Example:
French Revolution AND diaries
French Revolution AND sources
(spain AND history AND 17th) AND (sources OR "early works" OR "personal narratives")
You can also use the terms below:
Examples of Sourcebooks for Colonial Brazil
Early Brazil : a documentary collection to 1700 / Stuart B Schwartz 2009
Tidings out of Brazil / Mark Graubard; John Parker 1957 is a reprint of letters out of Brazil in the early 16th century
An Elizabethan in 1582 : the diary of Richard Madox, fellow of All Souls / Richard Madox; Elizabeth Story Donno 1976 by the 16th century English Chaplain and scholar Richard Madox.
The Brazil reader : history, culture, politics by Robert M. Levine, John J. Crocitti Publication Date: 1999 ;
Brazil Reader: history, culture, politics by James N. Green, Victoria Langland, and Lilia Moritz Schwarcz Publication Date: 2018 ;
Children of God's fire: A documentary history of black slavery in Brazil by Robert Edgar Conrad Publication Date: 1994 ;
Colonial Latin America: a documentary history by Edited by Kenneth Mills, William B. Taylor, and Sandra Lauderdale Graham Publication Date: 2004 ;
Colonial lives : documents on Latin American history, 1550-1850 by Richard Boyer, Geoffrey Spurling, Publication Date: 2000 ;
Consider the source: documents in Latin American history by Julie A. Charlip Publication Date: 2007 ;
History of Latin American Civilization: Sources and Interpretations by Lewis Hanke Publication Date: 1973