TY  - BOOK
AU  - Frick,U.
TI  - On the origin of helium, neon, and argon isotopes in sieved mineral separates from an apollo 15 soil
T2  - British Regional Geology
SN  - 11 880141 4
PY  - 1975///
CY  - Zürich
PB  - Swiss Federal Institute of technology
ER  -