Conservation in the 21st centuryHorst D. Steklis · First published 2007 · Latest edition 2008Open the Tome
Neurosciences (Comparative Primate Biology, Vol 4)Horst D. Steklis · First published 1988Open the Tome
Origins and evolution of language and speechStevan R. Harnad, Horst D. Steklis, Jane Beckman Lancaster · First published 1976Open the Tome