Thomas, Jack Ward; Franklin, Jerry F; Gordon, John; Johnson, K Norman (2006). "The Northwest Forest Plan: Origins, Components, Implementation Experience and Suggestions for change". Conservation Biology. 20 (2): 277–87. doi:10.1111/j.1523-1739.2006.00385.x. PMID16903089. S2CID10595995.
Thomas, Jack Ward; Franklin, Jerry F; Gordon, John; Johnson, K Norman (2006). "The Northwest Forest Plan: Origins, Components, Implementation Experience and Suggestions for change". Conservation Biology. 20 (2): 277–87. doi:10.1111/j.1523-1739.2006.00385.x. PMID16903089. S2CID10595995.
Thomas, Jack Ward; Franklin, Jerry F; Gordon, John; Johnson, K Norman (2006). "The Northwest Forest Plan: Origins, Components, Implementation Experience and Suggestions for change". Conservation Biology. 20 (2): 277–87. doi:10.1111/j.1523-1739.2006.00385.x. PMID16903089. S2CID10595995.