Hassig, R. 1985. Trade, Tribute, and Transportation. the Sixteenth-Century Political Economy of the Valley of Mexico.
@book{hassig1985,
author = {Hassig, R.},
key = {Hassig (1985)},
title = {Trade, Tribute, and Transportation. the Sixteenth-Century Political Economy of the Valley of Mexico},
year = {1985}
}