Heat capacities of the elements (data page)

Specific heat capacity

CRC

As quoted in an online version of:

David R. Lide, CRC Handbook of Chemistry and Physics, 84th Edition. CRC Press. Boca Raton, Florida, 2003; Section 4, Properties of the Elements and Inorganic Compounds; Heat Capacity of the Elements at 25 °C

WEL

As quoted at http://www.webelements.com/ from these sources:

R.H. Schumm, D.D. Wagman, S. Bailey, W.H. Evans, and V.B. Parker in National Bureau of Standards Technical Notes 270–1 to 270–8, 1973.
J.D. Cox, DD., Wagman, and V.A. Medvedev, CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, USA, 1989.

LNG

As quoted from various sources in:

J.A. Dean, Lange's Handbook of Chemistry, McGraw-Hill, 1999; Section 6, Thermodynamic Properties; Table 6.3, Enthalpies and Gibbs Energies of Formation, Entropies, and Heat Capacities of the Elements and Inorganic Compounds