Signs of Casas Grandes Shamans. Christine S. VanPool , Todd L. VanPool

Polly Schaafsma • 2008

A New Look at Tie-Dye and the Dot-in-a-Square Motif Ih the Prehispanic Southwest

Laurie D. Webster, Kelley A. Hays-Gilpin, Polly Schaafsma • 2006

A New Look at Tie-Dye and the Dot-in-a-Square Motif Ih the Prehispanic Southwest

Laurie D. Webster, Kelley A. Hays-Gilpin, Polly Schaafsma • 2004

Handbook of Rock Art Research. David S. Whitley

Polly Schaafsma • 2002

They Write Their Dreams on the Rock Forever: Rock Writings in the Stein River Valley of British Columbia. Annie York, Richard Daly and Chris Arnett

Polly Schaafsma • 1994

The Rock Art of Texas Indians. W. W. Newcomb, Jr.

Polly Schaafsma • 1968