TY - RPRT TI - Letter Circular 1083: NBS intergovernmental personal exchange program - an invitation to state and local governments and academic and public interest groups that serve them to join in research PY - 1977 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - LCIRC 1083 DO - 10.6028/NBS.LCIRC.1083 ER -