TY  - BOOK
AU  - Penney,William George
TI  - The quantum theory of valency
T2  - Methuen's monographs on chemical subjects
U1  - 530.12 23
PY  - 1935///
CY  - London
PB  - Methuen & co. ltd.
KW  - Quantum theory
KW  - Valence (Theoretical chemistry)
N1  - "References": p. 93-94. & Index
ER  -