TY  - BOOK
AU  - Cook, A. H
TI  - Gravity and the earth
T2  - The Wykeham science series for school and universities; no. 6
SN  - 0-8448-1108-4
PY  - 1969///
CY  - London
PB  - Wykehan Publictaion
KW  - Astronomy and astrophysics thesaurus
KW  - Earth
KW  - Gravitation
ER  -