APA-viite (7. p.)
Society of Economic Paleontologists and Mineralogists. (1954). Upper Guadalupian Facies. Permian Reef Complex. Guadalupe Mountains, New Mexico and West Texas. Soc. of Economic Paleontologists and Mineralogists.
Chicago-viite (17. p.)
Society of Economic Paleontologists and Mineralogists. Upper Guadalupian Facies. Permian Reef Complex. Guadalupe Mountains, New Mexico and West Texas. Tulsa, Okl: Soc. of Economic Paleontologists and Mineralogists, 1954.
MLA-viite (9. p.)
Society of Economic Paleontologists and Mineralogists. Upper Guadalupian Facies. Permian Reef Complex. Guadalupe Mountains, New Mexico and West Texas. Soc. of Economic Paleontologists and Mineralogists, 1954.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.