TY  - RPRT
TI  - Calibration of unrecorded low and medium density type magnetic disk pack surfaces 
AU  - Goumas, Nicholas P
PY  - 1975
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 884
DO  - 10.6028/NBS.TN.884
ER  -