Cita APA (7th ed.)
ebrary, Inc, Wright, H. E., & Porter, S. C. (1983). The Holocene. Longman.
Cita Chicago (17th ed.)
ebrary, Inc, H. E. Wright, i Stephen C. Porter. The Holocene. London: Longman, 1983.
Cita MLA (9th ed.)
ebrary, Inc, et al. The Holocene. Longman, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.