Iowa Geology, Number 10, 1985, 28 p., IG-10 26 figs. Iowa Geology, Number 11, 1986, 28 p., IG-11 19 figs. Request Iowa Geology, Number 12, 1987, 28 p., IG-12 19 figs. Request Iowa Geology, Number 13, 1988, 28 p., IG-13 23 figs. Request Iowa Geology, Number 14, 1989, 28 p., IG-14 22 figs. Request Iowa Geology, Number 15, 1990, 28 p., IG-15 15 figs. Request Iowa Geology, Number 16, 1991, 28 p., IG-16 18 figs. Request Iowa Geology, Number 17, Centennial IG-17 Edition, 1992, 28 p., 26 illustrations. Iowa Geology, Number 18, 1993, 28 p., IG-18 48 photos and illustrations. Request Iowa Geology, Number 19, 1994, 28 p., IG-19 41 photos and illustrations. Request Iowa Geology, Number 20, 1995, 28 p., IG-20 34 photos and illustrations. Request Iowa Geology, Number 21, 1996, 28 p., IG-21 32 photos and illustrations. Request Iowa Geology, Number 22, 1997, 28 p., IG-22 36 photos and illustrations. Request
IG-10 Iowa Geology, Number 10, 1985, 28 p., 26 figs. IG-11 Iowa Geology, Number 11, 1986, 28 p., 19 figs. Request IG-12 Iowa Geology, Number 12, 1987, 28 p., 19 figs. Request IG-13 Iowa Geology, Number 13, 1988, 28 p., 23 figs. Request IG-14 Iowa Geology, Number 14, 1989, 28 p., 22 figs. Request IG-15 Iowa Geology, Number 15, 1990, 28 p., 15 figs. Request IG-16 Iowa Geology, Number 16, 1991, 28 p., 18 figs. Request IG-17 Iowa Geology, Number 17, Centennial Edition, 1992, 28 p., 26 illustrations. IG-18 Iowa Geology, Number 18, 1993, 28 p., 48 photos and illustrations. Request IG-19 Iowa Geology, Number 19, 1994, 28 p., 41 photos and illustrations. Request IG-20 Iowa Geology, Number 20, 1995, 28 p., 34 photos and illustrations. Request IG-21 Iowa Geology, Number 21, 1996, 28 p., 32 photos and illustrations. Request IG-22 Iowa Geology, Number 22, 1997, 28 p., 36 photos and illustrations. Request
IGS%20Pubs.docx