APA-Zitierstil (7. Ausg.)

Leddra, M. (2010). Time matters: Geology's legacy to scientific thought (1. pupl.). Wiley-Blackwell.

Chicago-Zitierstil (17. Ausg.)

Leddra, Michael. Time Matters: Geology's Legacy to Scientific Thought. 1. pupl. Oxford: Wiley-Blackwell, 2010.

MLA-Zitierstil (9. Ausg.)

Leddra, Michael. Time Matters: Geology's Legacy to Scientific Thought. 1. pupl. Wiley-Blackwell, 2010.