Westermann, G. E. G. (1981). The upper Bajocian and lower Bathonian (Jurassic) ammonite faunas of Oaxaca, Mexico and West-Tethyan affinities.
Chicago Style (17th ed.) CitationWestermann, Gerd E. G. The Upper Bajocian and Lower Bathonian (Jurassic) Ammonite Faunas of Oaxaca, Mexico and West-Tethyan Affinities. México, 1981.
MLA (9th ed.) CitationWestermann, Gerd E. G. The Upper Bajocian and Lower Bathonian (Jurassic) Ammonite Faunas of Oaxaca, Mexico and West-Tethyan Affinities. 1981.
Warning: These citations may not always be 100% accurate.