TY  - RPRT
TI  - Surface structure of ammonium perchlorate composite propellants
AU  - Beckstead, M. W.
AU  - Boggs, T. L.
AU  - Derr, R. L.
PY  - 1970
UR  - https://ntrs.nasa.gov/citations/19700047118
ID  - 19700047118
ER  -