Whitehead, N. Et Al. 2004. Are any public-reported earthquake precursors valid?. NATURAL HAZARDS AND EARTH SYSTEM SCIENCES , vol.4, no.3 , 463-468.

Whitehead, N., Ulusoy, Ü., Asahara, H., & Ikeya, M., (2004). Are any public-reported earthquake precursors valid?. NATURAL HAZARDS AND EARTH SYSTEM SCIENCES , vol.4, no.3, 463-468.

Whitehead, NE Et Al. "Are any public-reported earthquake precursors valid?," NATURAL HAZARDS AND EARTH SYSTEM SCIENCES , vol.4, no.3, 463-468, 2004

Whitehead, NE Et Al. "Are any public-reported earthquake precursors valid?." NATURAL HAZARDS AND EARTH SYSTEM SCIENCES , vol.4, no.3, pp.463-468, 2004

Whitehead, N. Et Al. (2004) . "Are any public-reported earthquake precursors valid?." NATURAL HAZARDS AND EARTH SYSTEM SCIENCES , vol.4, no.3, pp.463-468.

@article{article, author={NE Whitehead Et Al. }, title={Are any public-reported earthquake precursors valid?}, journal={NATURAL HAZARDS AND EARTH SYSTEM SCIENCES}, year=2004, pages={463-468} }