Gaya APA
Geissman, T.
(1959).
Principles of Organic Chemistry : Second editions
(
2)
.
AMERICA:
W.H FREEMAN AND COMPANY.
Gaya MLA
Geissman, T.A.
"Principles of Organic Chemistry : Second editions".
2
AMERICA:
W.H FREEMAN AND COMPANY,
1959.
Text.