Dyfyniad APA
Thomas, E. A. (2012). Coal in our veins: A personal journey. Utah State University Press.
Dyfyniad Arddull Chicago
Thomas, Erin Ann. Coal in Our Veins: A Personal Journey. Logan, Utah: Utah State University Press, 2012.
Dyfyniad MLA
Thomas, Erin Ann. Coal in Our Veins: A Personal Journey. Utah State University Press, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.