As printed in the December issues of the AAPG Bulletin.
As printed in the 2015 December issue of the AAPG Bulletin, v. 97, p. 2258-2259
As printed in the 2013 December issue of the AAPG Bulletin, v. 95, p. 2268-2269
As printed in the 2012 December issue of the AAPG Bulletin, v. 94, p. 2330-2331
As printed in the 2011 December issue of the AAPG Bulletin, v. 93, p. 2129-2130
As printed in the 2010 December issue of the AAPG Bulletin, v. 92, p. 1896-1898