Gaya APA
The encyclopedia of chemistry. (1973).
New York:
Van Nostrand Reinhold Co..
Gaya Chicago
The encyclopedia of chemistry.
.
New York:
Van Nostrand Reinhold Co.,
1973.
Tesis.
Gaya MLA
The encyclopedia of chemistry.
.
New York:
Van Nostrand Reinhold Co.,
1973.
Tesis.
Gaya Turabian
The encyclopedia of chemistry.
New York:
Van Nostrand Reinhold Co.,
1973.
Tesis.