Author

Samuel Bertolet Detwiler

2 books found

Cover of Report of trip to India, May-June 1962

Report of trip to India, May-June 1962

Samuel Bertolet Detwiler · First published 1962

Cover of Insect and disease control as a branch of forest protection

Insect and disease control as a branch of forest protection

Samuel Bertolet Detwiler · First published 1929