Ransom, J. E. (1955). Petrified forest trails, a guide to the petrified forests of America: A handbook for the collector of petrified woods. Mineralogist Pub. Co..
Chicago Style (17th ed.) CitationRansom, Jay Ellis. Petrified Forest Trails, a Guide to the Petrified Forests of America: A Handbook for the Collector of Petrified Woods. Portland, Or.: Mineralogist Pub. Co., 1955.
MLA (9th ed.) CitationRansom, Jay Ellis. Petrified Forest Trails, a Guide to the Petrified Forests of America: A Handbook for the Collector of Petrified Woods. Mineralogist Pub. Co., 1955.
Warning: These citations may not always be 100% accurate.