'7 years after publishing a paper on the Periodic Table, this Russian investigated the Pennsylvania oil fields'
(Dmitri) Mendeleev
SCIENTISTS: 7 years after publishing a paper on the Periodic Table, this Russian investigated the Pennsylvania oil fields
7 years after publishing a paper on the Periodic Table, this Russian investigated the Pennsylvania oil fields
7 years after publishing a paper on the Periodic Table, this Russian investigated the Pennsylvania oil fields
SCIENTISTS
Dmitri Mendeleev
SCIENTISTS