Samuel Walker

发表

Craig S. Hill, Mary Anne Holmgren, Patricia Smith, 1963 .

Samuel Walker, 2005 .

Geoffrey P. Alpert, Dennis Jay Kenney, Samuel Walker, 2000 .

Charles M. Katz, Samuel Walker, C. Katz, 1992 .

Geoffrey P. Alpert, Dennis Jay Kenney, Samuel Walker, 2001 .