Gaya APA
Mcgraw-Hill Dictionary of environmental science. (2003).
New York:
Mc Graw Hill.
Gaya Chicago
Mcgraw-Hill Dictionary of environmental science.
text.
New York:
Mc Graw Hill,
2003.
Tesis.
Gaya MLA
Mcgraw-Hill Dictionary of environmental science.
text.
New York:
Mc Graw Hill,
2003.
Tesis.
Gaya Turabian
Mcgraw-Hill Dictionary of environmental science.
New York:
Mc Graw Hill,
2003.
Tesis.