Gaya APA
Alstad, Don. (2001).
Basic populus models of ecology .
Upper Saddle River, NJ:
Prentice Hall.
Gaya Chicago
Alstad, Don.
Basic populus models of ecology.
Upper Saddle River, NJ:
Prentice Hall,
2001.
Text.
Gaya MLA
Alstad, Don.
Basic populus models of ecology.
Upper Saddle River, NJ:
Prentice Hall,
2001.
Text.
Gaya Turabian
Alstad, Don.
Basic populus models of ecology.
Upper Saddle River, NJ:
Prentice Hall,
2001.
Print.