Cita APA (7a ed.)
Hoefnagels, M. Biology: The essentials. McGraw-Hill.
Cita Chicago Style (17a ed.)
Hoefnagels, Marielle. Biology: The Essentials. New York: McGraw-Hill.
Cita MLA (9a ed.)
Hoefnagels, Marielle. Biology: The Essentials. McGraw-Hill.
Precaución: Estas citas no son 100% exactas.