Gaya APA
Porteous, Andrew. (1993).
Dictionary of environmental science and technology (Revised Edition).
New York:
John Wiley and Sons.
Gaya Chicago
Porteous, Andrew.
Dictionary of environmental science and technology.
Revised Edition
New York:
John Wiley and Sons,
1993.
Text.
Gaya MLA
Porteous, Andrew.
Dictionary of environmental science and technology.
Revised Edition
New York:
John Wiley and Sons,
1993.
Text.
Gaya Turabian
Porteous, Andrew.
Dictionary of environmental science and technology.
Revised Edition
New York:
John Wiley and Sons,
1993.
Print.