Cita APA (7th ed.)
Bunnett, R. B. (1984). Physical geography. Longman.
Cita Chicago (17th ed.)
Bunnett, R. B. Physical Geography. Harlow: Longman, 1984.
Cita MLA (9th ed.)
Bunnett, R. B. Physical Geography. Longman, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.