Gaya APA
Public Health and Human Ecology. (1998).
New York:
[s.n.].
Gaya Chicago
Public Health and Human Ecology.
2nd.
New York:
[s.n.],
1998.
Text.
Gaya MLA
Public Health and Human Ecology.
2nd.
New York:
[s.n.],
1998.
Text.
Gaya Turabian
Public Health and Human Ecology.
New York:
[s.n.],
1998.
Print.