Gaya APA
Penn, Julie. (2010).
Oxford Read and Discover 4: All about Plants .
New York:
Oxford University Press.
Gaya Chicago
Penn, Julie.
Oxford Read and Discover 4: All about Plants.
New York:
Oxford University Press,
2010.
Text.
Gaya MLA
Penn, Julie.
Oxford Read and Discover 4: All about Plants.
New York:
Oxford University Press,
2010.
Text.
Gaya Turabian
Penn, Julie.
Oxford Read and Discover 4: All about Plants.
New York:
Oxford University Press,
2010.
Print.