Gaya APA
Foresman, Scott. (1980).
Biology .
Texas:
Scott Foresman and Company.
Gaya Chicago
Foresman, Scott.
Biology.
Texas:
Scott Foresman and Company,
1980.
Tesis.
Gaya MLA
Foresman, Scott.
Biology.
Texas:
Scott Foresman and Company,
1980.
Tesis.
Gaya Turabian
Foresman, Scott.
Biology.
Texas:
Scott Foresman and Company,
1980.
Tesis.