Shelley, P. G. (1929). Accelerated weathering properties of Oklahoma asphalts. [Cooperative publishing Co., Guthrie].
Chicago Style (17th ed.) CitationShelley, Paul Gray. Accelerated Weathering Properties of Oklahoma Asphalts. Norman: [Cooperative publishing Co., Guthrie], 1929.
MLA (9th ed.) CitationShelley, Paul Gray. Accelerated Weathering Properties of Oklahoma Asphalts. [Cooperative publishing Co., Guthrie], 1929.
Warning: These citations may not always be 100% accurate.