Cita APA (7th ed.)

Head, M. J., & Gibbard, P. L. Early-Middle Pleistocene transitions: The land-ocean evidence. Geological society of London.

Cita Chicago (17th ed.)

Head, Martin J., i Philip Leonard Gibbard. Early-Middle Pleistocene Transitions: The Land-ocean Evidence. London: Geological society of London.

Cita MLA (8th ed.)

Head, Martin J., i Philip Leonard Gibbard. Early-Middle Pleistocene Transitions: The Land-ocean Evidence. Geological society of London.