TY  - BOOK
T1  - Daylight, twilight, darkness, and time their distribution over the earth and their relationships to human affairs
A1  - Harrison, Lucia C.
LA  - English
PP  - New York
PB  - Silver
YR  - 1935
UL  - http://www.ds.mainlib.upd.edu.ph/Record/UP-99796217611337233
OP  - 216
CN  - QB 44 H35 1935
KW  - Latitude.
KW  - Longitude.
KW  - Human beings : Effect of environment on.
ER  -