APA-Zitierstil (7. Ausg.)

(1991). Coalfields of New Mexico: Geology and resources ; thickness and distribution of coal beds, estimates of the resources, and descriptions of methods used for calculating resourc es. United States Gov. Print. Off.

Chicago-Zitierstil (17. Ausg.)

Coalfields of New Mexico: Geology and Resources ; Thickness and Distribution of Coal Beds, Estimates of the Resources, and Descriptions of Methods Used for Calculating Resourc Es. [Washington]: United States Gov. Print. Off, 1991.

MLA-Zitierstil (9. Ausg.)

Coalfields of New Mexico: Geology and Resources ; Thickness and Distribution of Coal Beds, Estimates of the Resources, and Descriptions of Methods Used for Calculating Resourc Es. United States Gov. Print. Off, 1991.