Cita APA (7th ed.)
Odum,Eugene p, & Barrett,Gray W. Fundamentals of Ecology.
Cita Chicago (17th ed.)
Odum,Eugene p, i Barrett,Gray W. Fundamentals of Ecology.
Cita MLA (9th ed.)
Odum,Eugene p, i Barrett,Gray W. Fundamentals of Ecology.
Atenció: Aquestes cites poden no estar 100% correctes.