Hi, I believe that Steve Allely and Jim Hamm are working on the subject for the next volume of their Encyclopedia of Native American Bows, Arrows & Quivers. In the mean time I no of no other texts on the subject ( though there may be some for professional ethnologists.) Saxton Pope did a tabulation of bow performances back about 1920, that includes the dimensions of the tested bows. I've seen the table reprinted a couple of times. Making Indian Bows and Arrows by Douglas Spotted Eagle contains a reprint of that table with dimensions for bows a Yurok, and a Yana Bow. The making of west coast bows is also covered at least briefly by Mr. Spotted Eagle. Jim Hamm's Bows & Arrows of the Native Americans has one illustration of a West Coast Bow with rough dimensions and a page of designs from the backs of California bows. Hopefully others have more extensive sources. Ron