TY  - BOOK
AU  - Whipple,Fred L.
TI  - Earth. moon, and planets
T2  - The harvard books on astronomy
AV  - QB601 W45
PY  - 1963///
CY  - Cambridge
PB  - Harvard University Press
KW  - Planetas
KW  - Luna
KW  - Tierra (Planeta)
ER  -