Resource series / Colorado Geological Survey.

no.1-2 (1976); ser.1 (1977); no.3; no.4-6 (1977); no.6; no.8; no.10; no.11; no.24; ser.4 (1977); no.4-5 1978-1979; no.6-8 1979-1980; ser.7-8 (1979-80); ser.10-11 (1980); no.13-14 1980-1981; no.14-19 (1981); no.15 1981; no.21 1981; 14-17 (1981-82); 18-21 (1981-82); no.17 1982; no.18 1982; no.20 1982; no.20-24 (1982); no.23 1982; no.16-19 1982-1983; no.23-24 1982-1983; 22-24 (1983); no.19 1983; no.22 1983; no.25 1987; no.25-26 (1987); no.27-29 1986-1990; no.28 (1990); no.29-30 (1990); no.32-36 (1995-96); no.33 1998; no.35 1998; no.37 (1999); no.38-39 2000; no.40 (2001)