Palaeomagnetism of some Middle Jurassic lavas from south-east Argentine / D.A. Valencio, J.F. Vilas. 1970. Palaeomagnetism of Late Palaeozoic and Early Mesozoic rocks of South America / Daniel A. Valencio and J.F. Vilas. Palaeomagnetism of the Lower Cretaceous Vulcanitas Cerro Colorado Formation of the Sierre de los Condores Group, Province of Cordoba, Argentina / Daniel Alberto Valencio.