"Jesse A. Friedman, formerly a member of the Division's staff, also collected information in Costa Rica by interviews and personal observations. Most of the research was completed before June 1961. The handbook was prepared by Mr. Friedman and by Mrs. Martha R. Lowenstern, a member of the Division's staff." Preface.
Electronic reproduction. [Place of reproduction not identified] : HathiTrust Digital Library, 2010.
Description based on print version record.