Dyfyniad APA
Stewart, B. E. (2011). No. 9: The 1968 Farmington Mine Disaster. West Virginia University Press.
Dyfyniad Arddull Chicago
Stewart, Bonnie E. No. 9: The 1968 Farmington Mine Disaster. Morgantown, W. Va.: West Virginia University Press, 2011.
Dyfyniad MLA
Stewart, Bonnie E. No. 9: The 1968 Farmington Mine Disaster. West Virginia University Press, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.