Cita APA (7th ed.)
Biggs,Alton. (2001). Science voyages: Life science. McGraw-Hill.
Cita Chicago (17th ed.)
Biggs,Alton. Science Voyages: Life Science. New York: McGraw-Hill, 2001.
Cita MLA (9th ed.)
Biggs,Alton. Science Voyages: Life Science. McGraw-Hill, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.