Author

Roberto Lleras-perez

3 books found

Cover of Metallurgy in Ancient Ecuador

Metallurgy in Ancient Ecuador

Roberto Lleras Perez · First published 2015

Cover of San Agustin

San Agustin

Roberto Lleras Perez · First published 1998

Placeholder cover for A contribution to the soil study of Kirkstall Abbey

A contribution to the soil study of Kirkstall Abbey

Roberto Lleras-perez · First published 1981