APA Style
Tivy, Joy, O'Hare, Greg. (1981).
Human Impact on the Ecoystem (11th).
:
Oliver & Boyd.
Chicago Style
Tivy, Joy, O'Hare, Greg.
Human Impact on the Ecoystem.
11th
:
Oliver & Boyd,
1981.
Text.
MLA Style
Tivy, Joy, O'Hare, Greg.
Human Impact on the Ecoystem.
11th
:
Oliver & Boyd,
1981.
Text.
Turabian Style
Tivy, Joy, O'Hare, Greg.
Human Impact on the Ecoystem.
11th
:
Oliver & Boyd,
1981.
Print.