Brief History of Herpetology in the Museum of Vertebrate Zoology, University of California, Berkeley, with a List of Type Specimens of Recent Amphibians and Reptiles Javier A. Rodriguez-Robles, David A. Good, David B. Wake E-Book (pdf) 01.01.2003

The Politics of Agrarian Reform in Brazil Wilder Robles, Kenneth A. Loparo E-Book (pdf) 05.08.2015

Instant Insights: Organic soil amendments Various Authors, Jared Nyang'au, Stamatis Chrysanthopoulos E-Book (epub) 28.01.2025