Cita APA (7a ed.)

Macdougall, J. D. (2008). Nature's clocks: How scientists measure the age of almost everything. University of California Press.

Cita Chicago Style (17a ed.)

Macdougall, J. D. Nature's Clocks: How Scientists Measure the Age of Almost Everything. Berkeley: University of California Press, 2008.

Cita MLA (8a ed.)

Macdougall, J. D. Nature's Clocks: How Scientists Measure the Age of Almost Everything. University of California Press, 2008.