TY  - BOOK
T1  - Classification.  Class Q: Science.
LA  - English
PP  - Washington
PB  - U. S. Government Printing Office
YR  - 1954
ED  - 5th ed., with supplementary pages.
UL  - https://tuklas.up.edu.ph/Record/UP-99796217602080385
OP  - 15
CN  - Z 696 U5 Q 1954
KW  - Classification : Books : Science.
ER  -