States), G. R. I. (. (1989). Application of advanced geological, petrophysical and engineering technologies to evaluate and improve gas recovery from low permeability sandstone reservoirs: Travis Peak Formation, North Appleby Field, Nacogdoches, Texas. Chicago, IL : Gas Research Institute.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিStates), Gas Research Institute (United. Application of Advanced Geological, Petrophysical and Engineering Technologies to Evaluate and Improve Gas Recovery from Low Permeability Sandstone Reservoirs: Travis Peak Formation, North Appleby Field, Nacogdoches, Texas. Chicago, IL : Gas Research Institute, 1989.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিStates), Gas Research Institute (United. Application of Advanced Geological, Petrophysical and Engineering Technologies to Evaluate and Improve Gas Recovery from Low Permeability Sandstone Reservoirs: Travis Peak Formation, North Appleby Field, Nacogdoches, Texas. Chicago, IL : Gas Research Institute, 1989.