Gaya APA
General Chemistry. (1984).
Lexington:
DC Heat and Company.
Gaya Chicago
General Chemistry.
Ed.7.
Lexington:
DC Heat and Company,
1984.
.
Gaya MLA
General Chemistry.
Ed.7.
Lexington:
DC Heat and Company,
1984.
.
Gaya Turabian
General Chemistry.
Lexington:
DC Heat and Company,
1984.
.