I’m taking a chance on this book remaining available. My copy, a Portuguese translation, was bought in São Paulo in 1985, and it is nostalgic for that reason. But it’s so yellowed and dog-eared, it looks like a corpse on my shelf, so it’s something I can shed. I remember Jorge Schwarz’ classes, and everything, though, and this book may be dated but the information in it is good. It will be better to rereading in another edition.
Axé.
coldhearted scientist وداد 
I’ll get rid of Schwarz, (and Schwartz should have been the name above, Roberto Schwarz is not Jorge Schwartz), Que horas são?, too. It’s from the era but my copy is just too old.
(Funny to think these books are from the 80s, really just after that first voyage to Peru, and I was so much more experienced, so much more time than four-ish years seemed to have passed)