Ahrens, T. J. (1995). Global earth physics: A handbook of physical constants. American Geophysical Union.
Čikaški stil citiranja (17. izdanje)Ahrens, Thomas J. Global Earth Physics: A Handbook of Physical Constants. Washington, D.C.: American Geophysical Union, 1995.
MLA način citiranja (8. izdanje)Ahrens, Thomas J. Global Earth Physics: A Handbook of Physical Constants. American Geophysical Union, 1995.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.